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/drivers/pinctrl/rockchip/Makefile b/drivers/pinctrl/rockchip/Makefile
index f09c6e1..5e3fbcb 100644
--- a/drivers/pinctrl/rockchip/Makefile
+++ b/drivers/pinctrl/rockchip/Makefile
@@ -1,8 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Copyright (c) 2017 Rockchip Electronics Co., Ltd
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 obj-$(CONFIG_PINCTRL_ROCKCHIP_RK3036) += pinctrl_rk3036.o
 obj-$(CONFIG_PINCTRL_ROCKCHIP_RK3128) += pinctrl_rk3128.o
diff --git a/drivers/pinctrl/rockchip/pinctrl_rk3036.c b/drivers/pinctrl/rockchip/pinctrl_rk3036.c
index e66ee99..ecfeb31 100644
--- a/drivers/pinctrl/rockchip/pinctrl_rk3036.c
+++ b/drivers/pinctrl/rockchip/pinctrl_rk3036.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Pinctrl driver for Rockchip 3036 SoCs
  * (C) Copyright 2015 Rockchip Electronics Co., Ltd
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/pinctrl/rockchip/pinctrl_rk3128.c b/drivers/pinctrl/rockchip/pinctrl_rk3128.c
index b1c32ac..8b87f74 100644
--- a/drivers/pinctrl/rockchip/pinctrl_rk3128.c
+++ b/drivers/pinctrl/rockchip/pinctrl_rk3128.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Pinctrl driver for Rockchip 3128 SoCs
  * (C) Copyright 2017 Rockchip Electronics Co., Ltd
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/pinctrl/rockchip/pinctrl_rk3188.c b/drivers/pinctrl/rockchip/pinctrl_rk3188.c
index fdab836..4612279 100644
--- a/drivers/pinctrl/rockchip/pinctrl_rk3188.c
+++ b/drivers/pinctrl/rockchip/pinctrl_rk3188.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Pinctrl driver for Rockchip RK3188 SoCs
  * Copyright (c) 2016 Heiko Stuebner <heiko@sntech.de>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/pinctrl/rockchip/pinctrl_rk322x.c b/drivers/pinctrl/rockchip/pinctrl_rk322x.c
index 354fea2..f4139d3 100644
--- a/drivers/pinctrl/rockchip/pinctrl_rk322x.c
+++ b/drivers/pinctrl/rockchip/pinctrl_rk322x.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2017 Rockchip Electronics Co., Ltd.
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/pinctrl/rockchip/pinctrl_rk3288.c b/drivers/pinctrl/rockchip/pinctrl_rk3288.c
index a21b640..3e01cfd 100644
--- a/drivers/pinctrl/rockchip/pinctrl_rk3288.c
+++ b/drivers/pinctrl/rockchip/pinctrl_rk3288.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Pinctrl driver for Rockchip SoCs
  * Copyright (c) 2015 Google, Inc
  * Written by Simon Glass <sjg@chromium.org>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/pinctrl/rockchip/pinctrl_rk3328.c b/drivers/pinctrl/rockchip/pinctrl_rk3328.c
index 0a478a8..fce41f3 100644
--- a/drivers/pinctrl/rockchip/pinctrl_rk3328.c
+++ b/drivers/pinctrl/rockchip/pinctrl_rk3328.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2016 Rockchip Electronics Co., Ltd
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/pinctrl/rockchip/pinctrl_rk3368.c b/drivers/pinctrl/rockchip/pinctrl_rk3368.c
index a03827a..61df54f 100644
--- a/drivers/pinctrl/rockchip/pinctrl_rk3368.c
+++ b/drivers/pinctrl/rockchip/pinctrl_rk3368.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2017 Rockchip Electronics Co., Ltd
  * Author: Andy Yan <andy.yan@rock-chips.com>
  * (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/pinctrl/rockchip/pinctrl_rk3399.c b/drivers/pinctrl/rockchip/pinctrl_rk3399.c
index 929035e..bc92dd7 100644
--- a/drivers/pinctrl/rockchip/pinctrl_rk3399.c
+++ b/drivers/pinctrl/rockchip/pinctrl_rk3399.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2016 Rockchip Electronics Co., Ltd
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/pinctrl/rockchip/pinctrl_rv1108.c b/drivers/pinctrl/rockchip/pinctrl_rv1108.c
index 4c81bec..5fb3915 100644
--- a/drivers/pinctrl/rockchip/pinctrl_rv1108.c
+++ b/drivers/pinctrl/rockchip/pinctrl_rv1108.c
@@ -1,7 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2016 Rockchip Electronics Co., Ltd
  * Author: Andy Yan <andy.yan@rock-chips.com>
- * SPDX-License-Identifier:     GPL-2.0+
  */
 #include <common.h>
 #include <dm.h>