pinctrl: stm32: Fix copyright

Uniformize STMicroelectronics copyrights header
Add SPDX identifier

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
Acked-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/stm32/pinctrl-stm32.c

@@ -1,7 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) Maxime Coquelin 2015
+ * Copyright (C) STMicroelectronics 2017
  * Author:  Maxime Coquelin <mcoquelin.stm32@gmail.com>
- * License terms:  GNU General Public License (GPL), version 2
  *
  * Heavily based on Mediatek's pinctrl driver
  */

drivers/pinctrl/stm32/pinctrl-stm32.h

@@ -1,7 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) Maxime Coquelin 2015
+ * Copyright (C) STMicroelectronics 2017
  * Author:  Maxime Coquelin <mcoquelin.stm32@gmail.com>
- * License terms:  GNU General Public License (GPL), version 2
  */
 #ifndef __PINCTRL_STM32_H
 #define __PINCTRL_STM32_H

drivers/pinctrl/stm32/pinctrl-stm32f429.c

@@ -1,7 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) Maxime Coquelin 2015
+ * Copyright (C) STMicroelectronics 2017
  * Author:  Maxime Coquelin <mcoquelin.stm32@gmail.com>
- * License terms:  GNU General Public License (GPL), version 2
  */
 #include <linux/init.h>
 #include <linux/of.h>

drivers/pinctrl/stm32/pinctrl-stm32f469.c

@@ -1,7 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) Alexandre Torgue 2016
- * Author:  Alexandre Torgue <alexandre.torgue@st.com>
- * License terms:  GNU General Public License (GPL), version 2
+ * Copyright (C) STMicroelectronics 2017
+ * Author:  Alexandre Torgue <alexandre.torgue@st.com> for STMicroelectronics.
  */
 #include <linux/init.h>
 #include <linux/of.h>

drivers/pinctrl/stm32/pinctrl-stm32f746.c

@@ -1,7 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) Maxime Coquelin 2015
+ * Copyright (C) STMicroelectronics 2017
  * Author:  Maxime Coquelin <mcoquelin.stm32@gmail.com>
- * License terms:  GNU General Public License (GPL), version 2
  */
 #include <linux/init.h>
 #include <linux/of.h>

drivers/pinctrl/stm32/pinctrl-stm32h743.c

@@ -1,7 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) Alexandre Torgue 2017
- * Author:  Alexandre Torgue <alexandre.torgue@st.com>
- * License terms:  GNU General Public License (GPL), version 2
+ * Copyright (C) STMicroelectronics 2017
+ * Author:  Alexandre Torgue <alexandre.torgue@st.com> for STMicroelectronics.
  */
 #include <linux/init.h>
 #include <linux/of.h>