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/freescale/p1022ds/Makefile b/board/freescale/p1022ds/Makefile
index 9793853..699e5b5 100644
--- a/board/freescale/p1022ds/Makefile
+++ b/board/freescale/p1022ds/Makefile
@@ -1,8 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Copyright 2010 Freescale Semiconductor, Inc.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 MINIMAL=
 
diff --git a/board/freescale/p1022ds/ddr.c b/board/freescale/p1022ds/ddr.c
index 09212bc..7093211 100644
--- a/board/freescale/p1022ds/ddr.c
+++ b/board/freescale/p1022ds/ddr.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2010 Freescale Semiconductor, Inc.
  * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
  *          Timur Tabi <timur@freescale.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/freescale/p1022ds/diu.c b/board/freescale/p1022ds/diu.c
index 6fd4d95..c6514cf 100644
--- a/board/freescale/p1022ds/diu.c
+++ b/board/freescale/p1022ds/diu.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2010-2011 Freescale Semiconductor, Inc.
  * Authors: Timur Tabi <timur@freescale.com>
  *
  * FSL DIU Framebuffer driver
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/freescale/p1022ds/law.c b/board/freescale/p1022ds/law.c
index 3a95072..079095d 100644
--- a/board/freescale/p1022ds/law.c
+++ b/board/freescale/p1022ds/law.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2010 Freescale Semiconductor, Inc.
  * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
  *          Timur Tabi <timur@freescale.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/freescale/p1022ds/p1022ds.c b/board/freescale/p1022ds/p1022ds.c
index 89acea3..835ede5 100644
--- a/board/freescale/p1022ds/p1022ds.c
+++ b/board/freescale/p1022ds/p1022ds.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2010-2012 Freescale Semiconductor, Inc.
  * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
  *          Timur Tabi <timur@freescale.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/freescale/p1022ds/spl.c b/board/freescale/p1022ds/spl.c
index 94b357d..cfdd9fc 100644
--- a/board/freescale/p1022ds/spl.c
+++ b/board/freescale/p1022ds/spl.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2013 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/freescale/p1022ds/spl_minimal.c b/board/freescale/p1022ds/spl_minimal.c
index 6c7e1ac..9ab4029 100644
--- a/board/freescale/p1022ds/spl_minimal.c
+++ b/board/freescale/p1022ds/spl_minimal.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2011 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/freescale/p1022ds/tlb.c b/board/freescale/p1022ds/tlb.c
index 69d5e44..194fbd5 100644
--- a/board/freescale/p1022ds/tlb.c
+++ b/board/freescale/p1022ds/tlb.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2010 Freescale Semiconductor, Inc.
  * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
  *          Timur Tabi <timur@freescale.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>