SPDX: Convert all of our single license tags to Linux Kernel style

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/board/gdsys/common/Makefile b/board/gdsys/common/Makefile
index d4f0e70..698ea3b 100644
--- a/board/gdsys/common/Makefile
+++ b/board/gdsys/common/Makefile
@@ -1,9 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (C) Copyright 2007
 # Stefan Roese, DENX Software Engineering, sr@denx.de.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 obj-$(CONFIG_SYS_FPGA_COMMON) += fpga.o
 obj-$(CONFIG_CMD_IOLOOP) += cmd_ioloop.o
diff --git a/board/gdsys/common/adv7611.c b/board/gdsys/common/adv7611.c
index 5355292..c416bf1 100644
--- a/board/gdsys/common/adv7611.c
+++ b/board/gdsys/common/adv7611.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2014
  * Dirk Eibach, Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/gdsys/common/adv7611.h b/board/gdsys/common/adv7611.h
index 25a8367..7b4e27c 100644
--- a/board/gdsys/common/adv7611.h
+++ b/board/gdsys/common/adv7611.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2014
  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _ADV7611_H_
diff --git a/board/gdsys/common/ch7301.c b/board/gdsys/common/ch7301.c
index c054e55..1234149 100644
--- a/board/gdsys/common/ch7301.c
+++ b/board/gdsys/common/ch7301.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2014
  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /* Chrontel CH7301C DVI Transmitter */
diff --git a/board/gdsys/common/ch7301.h b/board/gdsys/common/ch7301.h
index 8383719..e0e8a9e 100644
--- a/board/gdsys/common/ch7301.h
+++ b/board/gdsys/common/ch7301.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2014
  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _CH7301_H_
diff --git a/board/gdsys/common/cmd_ioloop.c b/board/gdsys/common/cmd_ioloop.c
index 0e81c9d..8e2f407 100644
--- a/board/gdsys/common/cmd_ioloop.c
+++ b/board/gdsys/common/cmd_ioloop.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2014
  * Dirk Eibach, Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/gdsys/common/dp501.c b/board/gdsys/common/dp501.c
index 54e7f63..69d4b8c 100644
--- a/board/gdsys/common/dp501.c
+++ b/board/gdsys/common/dp501.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2012
  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /* Parade Technologies Inc. DP501 DisplayPort DVI/HDMI Transmitter */
diff --git a/board/gdsys/common/fanctrl.c b/board/gdsys/common/fanctrl.c
index 52a4f33..5e77683 100644
--- a/board/gdsys/common/fanctrl.c
+++ b/board/gdsys/common/fanctrl.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2015
  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/gdsys/common/fanctrl.h b/board/gdsys/common/fanctrl.h
index 12bc850..ab7e58d 100644
--- a/board/gdsys/common/fanctrl.h
+++ b/board/gdsys/common/fanctrl.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2015
  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _FANCTRL_H_
diff --git a/board/gdsys/common/fpga.c b/board/gdsys/common/fpga.c
index 09c0446..f189e5f 100644
--- a/board/gdsys/common/fpga.c
+++ b/board/gdsys/common/fpga.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2013
  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/gdsys/common/ihs_mdio.c b/board/gdsys/common/ihs_mdio.c
index 822517d..8a1bc46 100644
--- a/board/gdsys/common/ihs_mdio.c
+++ b/board/gdsys/common/ihs_mdio.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2014
  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/gdsys/common/ihs_mdio.h b/board/gdsys/common/ihs_mdio.h
index 64b4049..cddc335 100644
--- a/board/gdsys/common/ihs_mdio.h
+++ b/board/gdsys/common/ihs_mdio.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2014
  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _IHS_MDIO_H_
diff --git a/board/gdsys/common/ioep-fpga.c b/board/gdsys/common/ioep-fpga.c
index 7ebce04..8e10501 100644
--- a/board/gdsys/common/ioep-fpga.c
+++ b/board/gdsys/common/ioep-fpga.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2014
  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/gdsys/common/ioep-fpga.h b/board/gdsys/common/ioep-fpga.h
index 44f7139..53570b9 100644
--- a/board/gdsys/common/ioep-fpga.h
+++ b/board/gdsys/common/ioep-fpga.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2014
  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _IOEP_FPGA_H_
diff --git a/board/gdsys/common/mclink.c b/board/gdsys/common/mclink.c
index 9f230c9..bf89d4e 100644
--- a/board/gdsys/common/mclink.c
+++ b/board/gdsys/common/mclink.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2012
  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/gdsys/common/mclink.h b/board/gdsys/common/mclink.h
index febd46a..4dc4058 100644
--- a/board/gdsys/common/mclink.h
+++ b/board/gdsys/common/mclink.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2012
  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _MCLINK_H_
diff --git a/board/gdsys/common/miiphybb.c b/board/gdsys/common/miiphybb.c
index 09b6225..042835d 100644
--- a/board/gdsys/common/miiphybb.c
+++ b/board/gdsys/common/miiphybb.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2010
  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/gdsys/common/osd.c b/board/gdsys/common/osd.c
index 454468e..392d005 100644
--- a/board/gdsys/common/osd.c
+++ b/board/gdsys/common/osd.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2010
  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/gdsys/common/osd.h b/board/gdsys/common/osd.h
index a3b0e3d..4e8e53a 100644
--- a/board/gdsys/common/osd.h
+++ b/board/gdsys/common/osd.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2010
  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _OSD_H_
diff --git a/board/gdsys/common/phy.c b/board/gdsys/common/phy.c
index 45d2b81..c4b2256 100644
--- a/board/gdsys/common/phy.c
+++ b/board/gdsys/common/phy.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2014
  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/gdsys/common/phy.h b/board/gdsys/common/phy.h
index afbdc65..e0aa661 100644
--- a/board/gdsys/common/phy.h
+++ b/board/gdsys/common/phy.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2014
  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _PHY_H_