pinctrl: berlin: switch to SPDX license identifier

Use the appropriate SPDX license identifier in the berlin pinctrl
driver source file and drop the previous license text.
Signed-off-by: NJisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/berlin/berlin-bg2.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * Marvell Berlin BG2 pinctrl driver.
  *
  * Copyright (C) 2014 Marvell Technology Group Ltd.
  *
  * Antoine Ténart <antoine.tenart@free-electrons.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
  */
 
 #include <linux/init.h>

drivers/pinctrl/berlin/berlin-bg2cd.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * Marvell Berlin BG2CD pinctrl driver.
  *
  * Copyright (C) 2014 Marvell Technology Group Ltd.
  *
  * Antoine Ténart <antoine.tenart@free-electrons.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
  */
 
 #include <linux/init.h>

drivers/pinctrl/berlin/berlin-bg2q.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * Marvell Berlin BG2Q pinctrl driver
  *
  * Copyright (C) 2014 Marvell Technology Group Ltd.
  *
  * Antoine Ténart <antoine.tenart@free-electrons.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
  */
 
 #include <linux/init.h>

drivers/pinctrl/berlin/berlin-bg4ct.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * Marvell berlin4ct pinctrl driver
  *
  * Copyright (C) 2015 Marvell Technology Group Ltd.
  *
  * Author: Jisheng Zhang <jszhang@marvell.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <linux/init.h>

drivers/pinctrl/berlin/berlin.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * Marvell Berlin SoC pinctrl core driver
  *
  * Copyright (C) 2014 Marvell Technology Group Ltd.
  *
  * Antoine Ténart <antoine.tenart@free-electrons.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
  */
 
 #include <linux/io.h>

drivers/pinctrl/berlin/berlin.h

+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Marvell Berlin SoC pinctrl driver.
  *
  * Copyright (C) 2014 Marvell Technology Group Ltd.
  *
  * Antoine Ténart <antoine.tenart@free-electrons.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
  */
 
 #ifndef __PINCTRL_BERLIN_H