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-uniphier/debug-uart/Makefile b/arch/arm/mach-uniphier/debug-uart/Makefile
index 3837ee7..5d78db5 100644
--- a/arch/arm/mach-uniphier/debug-uart/Makefile
+++ b/arch/arm/mach-uniphier/debug-uart/Makefile
@@ -1,6 +1,4 @@
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
+# SPDX-License-Identifier: GPL-2.0+
 
 ifdef CONFIG_SPL_BUILD
 obj-$(CONFIG_ARCH_UNIPHIER_LD4)		+= debug-uart-ld4.o
diff --git a/arch/arm/mach-uniphier/debug-uart/debug-uart-ld20.c b/arch/arm/mach-uniphier/debug-uart/debug-uart-ld20.c
index 2dc2bf8..b742feb 100644
--- a/arch/arm/mach-uniphier/debug-uart/debug-uart-ld20.c
+++ b/arch/arm/mach-uniphier/debug-uart/debug-uart-ld20.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <config.h>
diff --git a/arch/arm/mach-uniphier/debug-uart/debug-uart-ld4.c b/arch/arm/mach-uniphier/debug-uart/debug-uart-ld4.c
index d5f1234..10a7087 100644
--- a/arch/arm/mach-uniphier/debug-uart/debug-uart-ld4.c
+++ b/arch/arm/mach-uniphier/debug-uart/debug-uart-ld4.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <config.h>
diff --git a/arch/arm/mach-uniphier/debug-uart/debug-uart-ld6b.c b/arch/arm/mach-uniphier/debug-uart/debug-uart-ld6b.c
index 50879f5..22d2caa 100644
--- a/arch/arm/mach-uniphier/debug-uart/debug-uart-ld6b.c
+++ b/arch/arm/mach-uniphier/debug-uart/debug-uart-ld6b.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <config.h>
diff --git a/arch/arm/mach-uniphier/debug-uart/debug-uart-pro4.c b/arch/arm/mach-uniphier/debug-uart/debug-uart-pro4.c
index 91998ec..0d66299 100644
--- a/arch/arm/mach-uniphier/debug-uart/debug-uart-pro4.c
+++ b/arch/arm/mach-uniphier/debug-uart/debug-uart-pro4.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <config.h>
diff --git a/arch/arm/mach-uniphier/debug-uart/debug-uart-pro5.c b/arch/arm/mach-uniphier/debug-uart/debug-uart-pro5.c
index 5390396..1a0a942 100644
--- a/arch/arm/mach-uniphier/debug-uart/debug-uart-pro5.c
+++ b/arch/arm/mach-uniphier/debug-uart/debug-uart-pro5.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <config.h>
diff --git a/arch/arm/mach-uniphier/debug-uart/debug-uart-pxs2.c b/arch/arm/mach-uniphier/debug-uart/debug-uart-pxs2.c
index 22a200a..5d50c4f 100644
--- a/arch/arm/mach-uniphier/debug-uart/debug-uart-pxs2.c
+++ b/arch/arm/mach-uniphier/debug-uart/debug-uart-pxs2.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <config.h>
diff --git a/arch/arm/mach-uniphier/debug-uart/debug-uart-sld8.c b/arch/arm/mach-uniphier/debug-uart/debug-uart-sld8.c
index 68d390c..da16abd 100644
--- a/arch/arm/mach-uniphier/debug-uart/debug-uart-sld8.c
+++ b/arch/arm/mach-uniphier/debug-uart/debug-uart-sld8.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <config.h>
diff --git a/arch/arm/mach-uniphier/debug-uart/debug-uart.c b/arch/arm/mach-uniphier/debug-uart/debug-uart.c
index 94d05a8..992b4a9 100644
--- a/arch/arm/mach-uniphier/debug-uart/debug-uart.c
+++ b/arch/arm/mach-uniphier/debug-uart/debug-uart.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/arm/mach-uniphier/debug-uart/debug-uart.h b/arch/arm/mach-uniphier/debug-uart/debug-uart.h
index d57e5df..4cbd2f0 100644
--- a/arch/arm/mach-uniphier/debug-uart/debug-uart.h
+++ b/arch/arm/mach-uniphier/debug-uart/debug-uart.h
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _MACH_DEBUG_UART_H