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/t208xrdb/cpld.c b/board/freescale/t208xrdb/cpld.c
index 4aa126b..9a9b9d8 100644
--- a/board/freescale/t208xrdb/cpld.c
+++ b/board/freescale/t208xrdb/cpld.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2014 Freescale Semiconductor
  *
- * SPDX-License-Identifier:	GPL-2.0+
- *
  * Freescale T2080RDB board-specific CPLD controlling supports.
  */
 
diff --git a/board/freescale/t208xrdb/cpld.h b/board/freescale/t208xrdb/cpld.h
index 9bd5247..bd6c203 100644
--- a/board/freescale/t208xrdb/cpld.h
+++ b/board/freescale/t208xrdb/cpld.h
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright 2014 Freescale Semiconductor
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*
diff --git a/board/freescale/t208xrdb/ddr.c b/board/freescale/t208xrdb/ddr.c
index 50dc69a..0b16982 100644
--- a/board/freescale/t208xrdb/ddr.c
+++ b/board/freescale/t208xrdb/ddr.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright 2014 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0
  */
 
 #include <common.h>
diff --git a/board/freescale/t208xrdb/ddr.h b/board/freescale/t208xrdb/ddr.h
index 175cf56..c00f178 100644
--- a/board/freescale/t208xrdb/ddr.h
+++ b/board/freescale/t208xrdb/ddr.h
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright 2014 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #ifndef __DDR_H__
diff --git a/board/freescale/t208xrdb/eth_t208xrdb.c b/board/freescale/t208xrdb/eth_t208xrdb.c
index ea51195..6894947 100644
--- a/board/freescale/t208xrdb/eth_t208xrdb.c
+++ b/board/freescale/t208xrdb/eth_t208xrdb.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2014 Freescale Semiconductor, Inc.
  *
  * Shengzhou Liu <Shengzhou.Liu@freescale.com>
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/freescale/t208xrdb/law.c b/board/freescale/t208xrdb/law.c
index eb82431..d3b263f 100644
--- a/board/freescale/t208xrdb/law.c
+++ b/board/freescale/t208xrdb/law.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2008-2014 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/board/freescale/t208xrdb/pci.c b/board/freescale/t208xrdb/pci.c
index f13d41c..161b8cb 100644
--- a/board/freescale/t208xrdb/pci.c
+++ b/board/freescale/t208xrdb/pci.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2007-2014 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/freescale/t208xrdb/spl.c b/board/freescale/t208xrdb/spl.c
index f0cc34d..ecb1e0d 100644
--- a/board/freescale/t208xrdb/spl.c
+++ b/board/freescale/t208xrdb/spl.c
@@ -1,6 +1,5 @@
+// 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/t208xrdb/t208xrdb.c b/board/freescale/t208xrdb/t208xrdb.c
index 619495e..adae3f9 100644
--- a/board/freescale/t208xrdb/t208xrdb.c
+++ b/board/freescale/t208xrdb/t208xrdb.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2009-2013 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/freescale/t208xrdb/t208xrdb.h b/board/freescale/t208xrdb/t208xrdb.h
index 13380d0..2f630ef 100644
--- a/board/freescale/t208xrdb/t208xrdb.h
+++ b/board/freescale/t208xrdb/t208xrdb.h
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright 2014 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __CORENET_DS_H__
diff --git a/board/freescale/t208xrdb/tlb.c b/board/freescale/t208xrdb/tlb.c
index 2cae4d0..542ab1e 100644
--- a/board/freescale/t208xrdb/tlb.c
+++ b/board/freescale/t208xrdb/tlb.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2008-2014 Freescale Semiconductor, Inc.
  *
  * (C) Copyright 2000
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #include <common.h>