ASoC: samsung: smdk_wm8994*: Convert to SPDX License Identifier

Replace GPL v2.0+ license statements with SPDX license identifier.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/samsung/smdk_wm8994.c

-/*
- *  smdk_wm8994.c
- *
- *  This program is free software; you can redistribute  it and/or modify it
- *  under  the terms of  the GNU General  Public License as published by the
- *  Free Software Foundation;  either version 2 of the  License, or (at your
- *  option) any later version.
- */
+// SPDX-License-Identifier: GPL-2.0+
 
 #include "../codecs/wm8994.h"
 #include <sound/pcm_params.h>

sound/soc/samsung/smdk_wm8994pcm.c

-/*
- *  sound/soc/samsung/smdk_wm8994pcm.c
- *
- *  Copyright (c) 2011 Samsung Electronics Co., Ltd
- *		http://www.samsung.com
- *
- *  This program is free software; you can redistribute  it and/or  modify it
- *  under  the terms of  the GNU General  Public License as published by the
- *  Free Software Foundation;  either version 2 of the  License, or (at your
- *  option) any later version.
- */
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Copyright (c) 2011 Samsung Electronics Co., Ltd
+//		http://www.samsung.com
+
 #include <linux/module.h>
 #include <sound/soc.h>
 #include <sound/pcm.h>