arm64: dts: uniphier: use proper SPDX-License-Identifier style

According to Documentation/process/license-rules.rst, move the SPDX
License Identifier to the very top of the file.  I used C++ comment
style not only for the SPDX line but for the entire block because
this seems Linus' preference [1].  I also dropped the parentheses to
follow the examples in that document.

[1] https://lkml.org/lkml/2017/11/25/133Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

arch/arm64/boot/dts/socionext/uniphier-ld11-global.dts

-/*
- * Device Tree Source for UniPhier LD11 Global Board
- *
- * Copyright (C) 2016-2017 Socionext Inc.
- *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
- *           Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
- *
- * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
- */
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+//
+// Device Tree Source for UniPhier LD11 Global Board
+//
+// Copyright (C) 2016-2017 Socionext Inc.
+//   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
+//           Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
 
 /dts-v1/;
 #include <dt-bindings/gpio/uniphier-gpio.h>

arch/arm64/boot/dts/socionext/uniphier-ld11-ref.dts

-/*
- * Device Tree Source for UniPhier LD11 Reference Board
- *
- * Copyright (C) 2016 Socionext Inc.
- *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
- */
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+//
+// Device Tree Source for UniPhier LD11 Reference Board
+//
+// Copyright (C) 2016 Socionext Inc.
+//   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
 
 /dts-v1/;
 #include "uniphier-ld11.dtsi"

arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi

-/*
- * Device Tree Source for UniPhier LD11 SoC
- *
- * Copyright (C) 2016 Socionext Inc.
- *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
- */
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+//
+// Device Tree Source for UniPhier LD11 SoC
+//
+// Copyright (C) 2016 Socionext Inc.
+//   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
 
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/gpio/uniphier-gpio.h>

arch/arm64/boot/dts/socionext/uniphier-ld20-global.dts

-/*
- * Device Tree Source for UniPhier LD20 Global Board
- *
- * Copyright (C) 2015-2017 Socionext Inc.
- *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
- *           Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
- *
- * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
- */
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+//
+// Device Tree Source for UniPhier LD20 Global Board
+//
+// Copyright (C) 2015-2017 Socionext Inc.
+//   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
+//           Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
 
 /dts-v1/;
 #include <dt-bindings/gpio/uniphier-gpio.h>

arch/arm64/boot/dts/socionext/uniphier-ld20-ref.dts

-/*
- * Device Tree Source for UniPhier LD20 Reference Board
- *
- * Copyright (C) 2015-2016 Socionext Inc.
- *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
- */
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+//
+// Device Tree Source for UniPhier LD20 Reference Board
+//
+// Copyright (C) 2015-2016 Socionext Inc.
+//   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
 
 /dts-v1/;
 #include "uniphier-ld20.dtsi"

arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi

-/*
- * Device Tree Source for UniPhier LD20 SoC
- *
- * Copyright (C) 2015-2016 Socionext Inc.
- *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
- */
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+//
+// Device Tree Source for UniPhier LD20 SoC
+//
+// Copyright (C) 2015-2016 Socionext Inc.
+//   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
 
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/gpio/uniphier-gpio.h>

arch/arm64/boot/dts/socionext/uniphier-pxs3-ref.dts

-/*
- * Device Tree Source for UniPhier PXs3 Reference Board
- *
- * Copyright (C) 2017 Socionext Inc.
- *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
- */
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+//
+// Device Tree Source for UniPhier PXs3 Reference Board
+//
+// Copyright (C) 2017 Socionext Inc.
+//   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
 
 /dts-v1/;
 #include "uniphier-pxs3.dtsi"

arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi

-/*
- * Device Tree Source for UniPhier PXs3 SoC
- *
- * Copyright (C) 2017 Socionext Inc.
- *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
- */
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+//
+// Device Tree Source for UniPhier PXs3 SoC
+//
+// Copyright (C) 2017 Socionext Inc.
+//   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
 
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/gpio/uniphier-gpio.h>