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/xilinx/zynqmp/Makefile b/board/xilinx/zynqmp/Makefile
index 3b7a10e..65bcb59 100644
--- a/board/xilinx/zynqmp/Makefile
+++ b/board/xilinx/zynqmp/Makefile
@@ -1,9 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (C) Copyright 2014 - 2016 Xilinx, Inc.
 # Michal Simek <michal.simek@xilinx.com>
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 obj-y	:= zynqmp.o
 
diff --git a/board/xilinx/zynqmp/cmds.c b/board/xilinx/zynqmp/cmds.c
index 6712d7b..d914653 100644
--- a/board/xilinx/zynqmp/cmds.c
+++ b/board/xilinx/zynqmp/cmds.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * (C) Copyright 2018 Xilinx, Inc.
  * Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
- *
- * SPDX-License-Identifier:	GPL-2.0
  */
 
 #include <common.h>
diff --git a/board/xilinx/zynqmp/xil_io.h b/board/xilinx/zynqmp/xil_io.h
index 0e4f810..c476c90 100644
--- a/board/xilinx/zynqmp/xil_io.h
+++ b/board/xilinx/zynqmp/xil_io.h
@@ -1,6 +1,4 @@
-/*
- * SPDX-License-Identifier:    GPL-2.0+
- */
+/* SPDX-License-Identifier: GPL-2.0+ */
 
 #ifndef XIL_IO_H /* prevent circular inclusions */
 #define XIL_IO_H
diff --git a/board/xilinx/zynqmp/zynqmp-zc1232-revA/psu_init_gpl.c b/board/xilinx/zynqmp/zynqmp-zc1232-revA/psu_init_gpl.c
index cb8ec25..af6b49a 100644
--- a/board/xilinx/zynqmp/zynqmp-zc1232-revA/psu_init_gpl.c
+++ b/board/xilinx/zynqmp/zynqmp-zc1232-revA/psu_init_gpl.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (c) Copyright 2015 Xilinx, Inc. All rights reserved.
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <asm/arch/psu_init_gpl.h>
diff --git a/board/xilinx/zynqmp/zynqmp-zc1254-revA/psu_init_gpl.c b/board/xilinx/zynqmp/zynqmp-zc1254-revA/psu_init_gpl.c
index 2c84587..a5a33b9 100644
--- a/board/xilinx/zynqmp/zynqmp-zc1254-revA/psu_init_gpl.c
+++ b/board/xilinx/zynqmp/zynqmp-zc1254-revA/psu_init_gpl.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (c) Copyright 2015 Xilinx, Inc. All rights reserved.
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <asm/arch/psu_init_gpl.h>
diff --git a/board/xilinx/zynqmp/zynqmp-zc1751-xm015-dc1/psu_init_gpl.c b/board/xilinx/zynqmp/zynqmp-zc1751-xm015-dc1/psu_init_gpl.c
index ab106c6..f73e997 100644
--- a/board/xilinx/zynqmp/zynqmp-zc1751-xm015-dc1/psu_init_gpl.c
+++ b/board/xilinx/zynqmp/zynqmp-zc1751-xm015-dc1/psu_init_gpl.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (c) Copyright 2015 Xilinx, Inc. All rights reserved.
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <asm/arch/psu_init_gpl.h>
diff --git a/board/xilinx/zynqmp/zynqmp-zc1751-xm016-dc2/psu_init_gpl.c b/board/xilinx/zynqmp/zynqmp-zc1751-xm016-dc2/psu_init_gpl.c
index bcf3aedf..9ead77d 100644
--- a/board/xilinx/zynqmp/zynqmp-zc1751-xm016-dc2/psu_init_gpl.c
+++ b/board/xilinx/zynqmp/zynqmp-zc1751-xm016-dc2/psu_init_gpl.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (c) Copyright 2015 Xilinx, Inc. All rights reserved.
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <asm/arch/psu_init_gpl.h>
diff --git a/board/xilinx/zynqmp/zynqmp-zc1751-xm017-dc3/psu_init_gpl.c b/board/xilinx/zynqmp/zynqmp-zc1751-xm017-dc3/psu_init_gpl.c
index bcf3aedf..9ead77d 100644
--- a/board/xilinx/zynqmp/zynqmp-zc1751-xm017-dc3/psu_init_gpl.c
+++ b/board/xilinx/zynqmp/zynqmp-zc1751-xm017-dc3/psu_init_gpl.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (c) Copyright 2015 Xilinx, Inc. All rights reserved.
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <asm/arch/psu_init_gpl.h>
diff --git a/board/xilinx/zynqmp/zynqmp-zc1751-xm018-dc4/psu_init_gpl.c b/board/xilinx/zynqmp/zynqmp-zc1751-xm018-dc4/psu_init_gpl.c
index bcf3aedf..9ead77d 100644
--- a/board/xilinx/zynqmp/zynqmp-zc1751-xm018-dc4/psu_init_gpl.c
+++ b/board/xilinx/zynqmp/zynqmp-zc1751-xm018-dc4/psu_init_gpl.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (c) Copyright 2015 Xilinx, Inc. All rights reserved.
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <asm/arch/psu_init_gpl.h>
diff --git a/board/xilinx/zynqmp/zynqmp-zc1751-xm019-dc5/psu_init_gpl.c b/board/xilinx/zynqmp/zynqmp-zc1751-xm019-dc5/psu_init_gpl.c
index 8e62a9c..db07456 100644
--- a/board/xilinx/zynqmp/zynqmp-zc1751-xm019-dc5/psu_init_gpl.c
+++ b/board/xilinx/zynqmp/zynqmp-zc1751-xm019-dc5/psu_init_gpl.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (c) Copyright 2015 Xilinx, Inc. All rights reserved.
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <asm/arch/psu_init_gpl.h>
diff --git a/board/xilinx/zynqmp/zynqmp-zcu100-revC/psu_init_gpl.c b/board/xilinx/zynqmp/zynqmp-zcu100-revC/psu_init_gpl.c
index 27e2ab6..d83dcd1 100644
--- a/board/xilinx/zynqmp/zynqmp-zcu100-revC/psu_init_gpl.c
+++ b/board/xilinx/zynqmp/zynqmp-zcu100-revC/psu_init_gpl.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (c) Copyright 2015 Xilinx, Inc. All rights reserved.
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <asm/arch/psu_init_gpl.h>
diff --git a/board/xilinx/zynqmp/zynqmp-zcu102-rev1.0/psu_init_gpl.c b/board/xilinx/zynqmp/zynqmp-zcu102-rev1.0/psu_init_gpl.c
index 758eed6..3e981d8 100644
--- a/board/xilinx/zynqmp/zynqmp-zcu102-rev1.0/psu_init_gpl.c
+++ b/board/xilinx/zynqmp/zynqmp-zcu102-rev1.0/psu_init_gpl.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (c) Copyright 2015 Xilinx, Inc. All rights reserved.
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <asm/arch/psu_init_gpl.h>
diff --git a/board/xilinx/zynqmp/zynqmp-zcu102-revA/psu_init_gpl.c b/board/xilinx/zynqmp/zynqmp-zcu102-revA/psu_init_gpl.c
index aa6496c..5f21c47 100644
--- a/board/xilinx/zynqmp/zynqmp-zcu102-revA/psu_init_gpl.c
+++ b/board/xilinx/zynqmp/zynqmp-zcu102-revA/psu_init_gpl.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (c) Copyright 2015 Xilinx, Inc. All rights reserved.
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <asm/arch/psu_init_gpl.h>
diff --git a/board/xilinx/zynqmp/zynqmp-zcu104-revA/psu_init_gpl.c b/board/xilinx/zynqmp/zynqmp-zcu104-revA/psu_init_gpl.c
index b7e0300..12ef5b4 100644
--- a/board/xilinx/zynqmp/zynqmp-zcu104-revA/psu_init_gpl.c
+++ b/board/xilinx/zynqmp/zynqmp-zcu104-revA/psu_init_gpl.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (c) Copyright 2015 Xilinx, Inc. All rights reserved.
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <asm/arch/psu_init_gpl.h>
diff --git a/board/xilinx/zynqmp/zynqmp-zcu106-revA/psu_init_gpl.c b/board/xilinx/zynqmp/zynqmp-zcu106-revA/psu_init_gpl.c
index e6fa477..fcd6a46 100644
--- a/board/xilinx/zynqmp/zynqmp-zcu106-revA/psu_init_gpl.c
+++ b/board/xilinx/zynqmp/zynqmp-zcu106-revA/psu_init_gpl.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (c) Copyright 2015 Xilinx, Inc. All rights reserved.
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <asm/arch/psu_init_gpl.h>
diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c
index 3c4cf80..ce7c050 100644
--- a/board/xilinx/zynqmp/zynqmp.c
+++ b/board/xilinx/zynqmp/zynqmp.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2014 - 2015 Xilinx, Inc.
  * Michal Simek <michal.simek@xilinx.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>