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/arch/arm/mach-orion5x/Makefile b/arch/arm/mach-orion5x/Makefile
index 5249aa8..606153e 100644
--- a/arch/arm/mach-orion5x/Makefile
+++ b/arch/arm/mach-orion5x/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Copyright (C) 2010 Albert ARIBAUD <albert.u.boot@aribaud.net>
 #
@@ -5,9 +6,6 @@
 # (C) Copyright 2009
 # Marvell Semiconductor <www.marvell.com>
 # Written-by: Prafulla Wadaskar <prafulla@marvell.com>
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 obj-y	= cpu.o
 obj-y	+= dram.o
diff --git a/arch/arm/mach-orion5x/cpu.c b/arch/arm/mach-orion5x/cpu.c
index 2ecd385..79b5f4f 100644
--- a/arch/arm/mach-orion5x/cpu.c
+++ b/arch/arm/mach-orion5x/cpu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2010 Albert ARIBAUD <albert.u.boot@aribaud.net>
  *
@@ -5,8 +6,6 @@
  * (C) Copyright 2009
  * Marvell Semiconductor <www.marvell.com>
  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/arm/mach-orion5x/dram.c b/arch/arm/mach-orion5x/dram.c
index e9c03f3..b52c417 100644
--- a/arch/arm/mach-orion5x/dram.c
+++ b/arch/arm/mach-orion5x/dram.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2010 Albert ARIBAUD <albert.u.boot@aribaud.net>
  *
@@ -5,8 +6,6 @@
  * (C) Copyright 2009
  * Marvell Semiconductor <www.marvell.com>
  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/arm/mach-orion5x/include/mach/cpu.h b/arch/arm/mach-orion5x/include/mach/cpu.h
index 092dbd6..c3ff896 100644
--- a/arch/arm/mach-orion5x/include/mach/cpu.h
+++ b/arch/arm/mach-orion5x/include/mach/cpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2010 Albert ARIBAUD <albert.u.boot@aribaud.net>
  *
@@ -5,8 +6,6 @@
  * (C) Copyright 2009
  * Marvell Semiconductor <www.marvell.com>
  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _ORION5X_CPU_H
diff --git a/arch/arm/mach-orion5x/include/mach/mv88f5182.h b/arch/arm/mach-orion5x/include/mach/mv88f5182.h
index e6c71ae..0e9fe0d 100644
--- a/arch/arm/mach-orion5x/include/mach/mv88f5182.h
+++ b/arch/arm/mach-orion5x/include/mach/mv88f5182.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2010 Albert ARIBAUD <albert.u.boot@aribaud.net>
  *
@@ -7,8 +8,6 @@
  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
  *
  * Header file for Feroceon CPU core 88F5182 SOC.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _CONFIG_88F5182_H
diff --git a/arch/arm/mach-orion5x/include/mach/orion5x.h b/arch/arm/mach-orion5x/include/mach/orion5x.h
index fbb1de8..4b1b0b0 100644
--- a/arch/arm/mach-orion5x/include/mach/orion5x.h
+++ b/arch/arm/mach-orion5x/include/mach/orion5x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2010 Albert ARIBAUD <albert.u.boot@aribaud.net>
  *
@@ -7,8 +8,6 @@
  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
  *
  * Header file for Marvell's Orion SoC with Feroceon CPU core.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _ASM_ARCH_ORION5X_H
diff --git a/arch/arm/mach-orion5x/lowlevel_init.S b/arch/arm/mach-orion5x/lowlevel_init.S
index 3f38f36..f5c382b 100644
--- a/arch/arm/mach-orion5x/lowlevel_init.S
+++ b/arch/arm/mach-orion5x/lowlevel_init.S
@@ -1,11 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2010 Albert ARIBAUD <albert.u.boot@aribaud.net>
  *
  * (C) Copyright 2009
  * Marvell Semiconductor <www.marvell.com>
  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <config.h>
diff --git a/arch/arm/mach-orion5x/timer.c b/arch/arm/mach-orion5x/timer.c
index ec4f6be..92725d3 100644
--- a/arch/arm/mach-orion5x/timer.c
+++ b/arch/arm/mach-orion5x/timer.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
   * Copyright (C) 2010 Albert ARIBAUD <albert.u.boot@aribaud.net>
  *
  * Based on original Kirkwood support which is
  * Copyright (C) Marvell International Ltd. and its affiliates
  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>