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/drivers/qe/Makefile b/drivers/qe/Makefile
index 8fa4866..0d31ed1 100644
--- a/drivers/qe/Makefile
+++ b/drivers/qe/Makefile
@@ -1,8 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Copyright (C) 2006 Freescale Semiconductor, Inc.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 obj-$(CONFIG_QE) += qe.o uccf.o uec.o uec_phy.o
 obj-$(CONFIG_U_QE) += qe.o
diff --git a/drivers/qe/fdt.c b/drivers/qe/fdt.c
index 9bbdc60..fd7f1495 100644
--- a/drivers/qe/fdt.c
+++ b/drivers/qe/fdt.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2008 Freescale Semiconductor, Inc.
  *
  * (C) Copyright 2000
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/qe/qe.c b/drivers/qe/qe.c
index 5366a1e..7654df8 100644
--- a/drivers/qe/qe.c
+++ b/drivers/qe/qe.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2006-2009 Freescale Semiconductor, Inc.
  *
  * Dave Liu <daveliu@freescale.com>
  * based on source code of Shlomi Gridish
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/qe/uccf.c b/drivers/qe/uccf.c
index bab5453..9beb5d9 100644
--- a/drivers/qe/uccf.c
+++ b/drivers/qe/uccf.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2006 Freescale Semiconductor, Inc.
  *
  * Dave Liu <daveliu@freescale.com>
  * based on source code of Shlomi Gridish
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/qe/uccf.h b/drivers/qe/uccf.h
index aa817e7..4098c66 100644
--- a/drivers/qe/uccf.h
+++ b/drivers/qe/uccf.h
@@ -1,10 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2006 Freescale Semiconductor, Inc.
  *
  * Dave Liu <daveliu@freescale.com>
  * based on source code of Shlomi Gridish
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __UCCF_H__
diff --git a/drivers/qe/uec.c b/drivers/qe/uec.c
index b3af707..69cdf94 100644
--- a/drivers/qe/uec.c
+++ b/drivers/qe/uec.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2006-2011 Freescale Semiconductor, Inc.
  *
  * Dave Liu <daveliu@freescale.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/qe/uec.h b/drivers/qe/uec.h
index 22e248f..5f8baef 100644
--- a/drivers/qe/uec.h
+++ b/drivers/qe/uec.h
@@ -1,10 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2006-2010 Freescale Semiconductor, Inc.
  *
  * Dave Liu <daveliu@freescale.com>
  * based on source code of Shlomi Gridish
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __UEC_H__
diff --git a/drivers/qe/uec_phy.c b/drivers/qe/uec_phy.c
index 9604270..9425379 100644
--- a/drivers/qe/uec_phy.c
+++ b/drivers/qe/uec_phy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2005,2010-2011 Freescale Semiconductor, Inc.
  *
@@ -6,8 +7,6 @@
  * Description: UCC GETH Driver -- PHY handling
  *		Driver for UEC on QE
  *		Based on 8260_io/fcc_enet.c
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/qe/uec_phy.h b/drivers/qe/uec_phy.h
index 11cbc25..83a7ccd 100644
--- a/drivers/qe/uec_phy.h
+++ b/drivers/qe/uec_phy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2005, 2011 Freescale Semiconductor, Inc.
  *
@@ -6,8 +7,6 @@
  * Description: UCC ethernet driver -- PHY handling
  *		Driver for UEC on QE
  *		Based on 8260_io/fcc_enet.c
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 #ifndef __UEC_PHY_H__
 #define __UEC_PHY_H__