ARM: dts: rmobile: Synchronize DT headers with Linux 6.1.7

Synchronize R-Car device tree headers with Linux 6.1.7,
commit 21e996306a6afaae88295858de0ffb8955173a15 .

This is only a copyright and SPDX identifier update, no
functional change.

The following script has been used for the synchronization:

$ for i in $(cd include/dt-bindings/clock/ ; ls -1 r8a*) ; do cp /linux-2.6/include/dt-bindings/clock/$i include/dt-bindings/clock/ ; done
$ for i in $(cd include/dt-bindings/power/ ; ls -1 r8a*) ; do cp /linux-2.6/include/dt-bindings/power/$i include/dt-bindings/power/ ; done

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
diff --git a/include/dt-bindings/clock/r8a77970-cpg-mssr.h b/include/dt-bindings/clock/r8a77970-cpg-mssr.h
index 4146395..6145ebe 100644
--- a/include/dt-bindings/clock/r8a77970-cpg-mssr.h
+++ b/include/dt-bindings/clock/r8a77970-cpg-mssr.h
@@ -1,11 +1,7 @@
-/*
+/* SPDX-License-Identifier: GPL-2.0+
+ *
  * Copyright (C) 2016 Renesas Electronics Corp.
  * Copyright (C) 2017 Cogent Embedded, Inc.
- *
- * 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.
  */
 #ifndef __DT_BINDINGS_CLOCK_R8A77970_CPG_MSSR_H__
 #define __DT_BINDINGS_CLOCK_R8A77970_CPG_MSSR_H__