clk: renesas: use SPDX identifier for Renesas drivers

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/renesas/clk-div6.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * r8a7790 Common Clock Framework support
  *
  * Copyright (C) 2013  Renesas Solutions Corp.
  *
  * Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.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; version 2 of the License.
  */
 
 #include <linux/clk-provider.h>

drivers/clk/renesas/r8a7795-cpg-mssr.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * r8a7795 Clock Pulse Generator / Module Standby and Software Reset
  *
@@ -6,10 +7,6 @@
  * Based on clk-rcar-gen3.c
  *
  * Copyright (C) 2015 Renesas Electronics Corp.
- *
- * 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; version 2 of the License.
  */
 
 #include <linux/device.h>

drivers/clk/renesas/r8a7796-cpg-mssr.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * r8a7796 Clock Pulse Generator / Module Standby and Software Reset
  *
@@ -7,10 +8,6 @@
  *
  * Copyright (C) 2015 Glider bvba
  * Copyright (C) 2015 Renesas Electronics Corp.
- *
- * 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; version 2 of the License.
  */
 
 #include <linux/device.h>

drivers/clk/renesas/r8a77995-cpg-mssr.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * r8a77995 Clock Pulse Generator / Module Standby and Software Reset
  *
@@ -7,10 +8,6 @@
  *
  * Copyright (C) 2015 Glider bvba
  * Copyright (C) 2015 Renesas Electronics Corp.
- *
- * 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; version 2 of the License.
  */
 
 #include <linux/device.h>

drivers/clk/renesas/rcar-gen3-cpg.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * R-Car Gen3 Clock Pulse Generator
  *
@@ -6,10 +7,6 @@
  * Based on clk-rcar-gen3.c
  *
  * Copyright (C) 2015 Renesas Electronics Corp.
- *
- * 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; version 2 of the License.
  */
 
 #include <linux/bug.h>

drivers/clk/renesas/rcar-usb2-clock-sel.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas R-Car USB2.0 clock selector
  *
@@ -6,10 +7,6 @@
  * Based on renesas-cpg-mssr.c
  *
  * Copyright (C) 2015 Glider bvba
- *
- * 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; version 2 of the License.
  */
 
 #include <linux/clk.h>

drivers/clk/renesas/renesas-cpg-mssr.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas Clock Pulse Generator / Module Standby and Software Reset
  *
@@ -7,10 +8,6 @@
  *
  * Copyright (C) 2013 Ideas On Board SPRL
  * Copyright (C) 2015 Renesas Electronics Corp.
- *
- * 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; version 2 of the License.
  */
 
 #include <linux/clk.h>

drivers/clk/renesas/renesas-cpg-mssr.h

+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Renesas Clock Pulse Generator / Module Standby and Software Reset
  *
  * Copyright (C) 2015 Glider bvba
- *
- * 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; version 2 of the License.
  */
 
 #ifndef __CLK_RENESAS_CPG_MSSR_H__