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/include/asm/arch-armada100/armada100.h b/arch/arm/include/asm/arch-armada100/armada100.h
index d9feb16..dd21ad3 100644
--- a/arch/arm/include/asm/arch-armada100/armada100.h
+++ b/arch/arm/include/asm/arch-armada100/armada100.h
@@ -1,10 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2010
  * Marvell Semiconductor <www.marvell.com>
  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
  * Contributor: Mahavir Jain <mjain@marvell.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _ASM_ARCH_ARMADA100_H
diff --git a/arch/arm/include/asm/arch-armada100/config.h b/arch/arm/include/asm/arch-armada100/config.h
index 113e1c7..2862dd0 100644
--- a/arch/arm/include/asm/arch-armada100/config.h
+++ b/arch/arm/include/asm/arch-armada100/config.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2011
  * Marvell Semiconductor <www.marvell.com>
  * Written-by: Lei Wen <leiwen@marvell.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*
diff --git a/arch/arm/include/asm/arch-armada100/cpu.h b/arch/arm/include/asm/arch-armada100/cpu.h
index c1f190d..cd5e505 100644
--- a/arch/arm/include/asm/arch-armada100/cpu.h
+++ b/arch/arm/include/asm/arch-armada100/cpu.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2010
  * Marvell Semiconductor <www.marvell.com>
  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>, Contributor: Mahavir Jain <mjain@marvell.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _ARMADA100CPU_H
diff --git a/arch/arm/include/asm/arch-armada100/gpio.h b/arch/arm/include/asm/arch-armada100/gpio.h
index 54e6ccf..b85f6a5 100644
--- a/arch/arm/include/asm/arch-armada100/gpio.h
+++ b/arch/arm/include/asm/arch-armada100/gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2011
  * eInfochips Ltd. <www.einfochips.com>
@@ -5,8 +6,6 @@
  *
  * (C) Copyright 2010
  * Marvell Semiconductor <www.marvell.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _ASM_ARCH_GPIO_H
diff --git a/arch/arm/include/asm/arch-armada100/mfp.h b/arch/arm/include/asm/arch-armada100/mfp.h
index b918239..a808ee8 100644
--- a/arch/arm/include/asm/arch-armada100/mfp.h
+++ b/arch/arm/include/asm/arch-armada100/mfp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Based on linux/arch/arm/mach-mpp/include/mfp-pxa168.h
  * (C) Copyright 2007
@@ -8,8 +9,6 @@
  * Marvell Semiconductor <www.marvell.com>
  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
  * Contributor: Mahavir Jain <mjain@marvell.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __ARMADA100_MFP_H
diff --git a/arch/arm/include/asm/arch-armada100/spi.h b/arch/arm/include/asm/arch-armada100/spi.h
index 631acf3..873ba6e 100644
--- a/arch/arm/include/asm/arch-armada100/spi.h
+++ b/arch/arm/include/asm/arch-armada100/spi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2011
  * eInfochips Ltd. <www.einfochips.com>
@@ -5,8 +6,6 @@
  *
  * (C) Copyright 2010
  * Marvell Semiconductor <www.marvell.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __ARMADA100_SPI_H_
diff --git a/arch/arm/include/asm/arch-armada100/utmi-armada100.h b/arch/arm/include/asm/arch-armada100/utmi-armada100.h
index fca1827..28147f4 100644
--- a/arch/arm/include/asm/arch-armada100/utmi-armada100.h
+++ b/arch/arm/include/asm/arch-armada100/utmi-armada100.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2012
  * eInfochips Ltd. <www.einfochips.com>
@@ -5,8 +6,6 @@
  *
  * (C) Copyright 2009
  * Marvell Semiconductor <www.marvell.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __UTMI_ARMADA100__