sh: shmobile: convert to SPDX identifiers

Update license to use SPDX-License-Identifier instead of verbose license
text.

Link: http://lkml.kernel.org/r/875zw8csxa.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Cc: Rich Felker <dalias@libc.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/sh/kernel/cpu/shmobile/Makefile

+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux/SuperH SH-Mobile backends.
 #

arch/sh/kernel/cpu/shmobile/cpuidle.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/sh/kernel/cpu/shmobile/cpuidle.c
  *
  * Cpuidle support code for SuperH Mobile
  *
  *  Copyright (C) 2009 Magnus Damm
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 #include <linux/init.h>
 #include <linux/kernel.h>

arch/sh/kernel/cpu/shmobile/pm.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/sh/kernel/cpu/shmobile/pm.c
  *
  * Power management support code for SuperH Mobile
  *
  *  Copyright (C) 2009 Magnus Damm
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 #include <linux/init.h>
 #include <linux/kernel.h>

arch/sh/kernel/cpu/shmobile/sleep.S

-/*
+/* SPDX-License-Identifier: GPL-2.0
+ *
  * arch/sh/kernel/cpu/sh4a/sleep-sh_mobile.S
  *
  * Sleep mode and Standby modes support for SuperH Mobile
  *
  *  Copyright (C) 2009 Magnus Damm
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 
 #include <linux/sys.h>