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>

arm: dts: r8a774b1: Import DTS from Linux 5.9-rc4

Import R8A774B1 (RZ/G2N) SoC DTSI and headers from upstream Linux kernel
5.9-rc4 commit f4d51dffc6c0 ("Linux 5.9-rc4")

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

arm: dts: r8a774b1: Import DTS from Linux 5.9-rc4

Import R8A774B1 (RZ/G2N) SoC DTSI and headers from upstream Linux kernel
5.9-rc4 commit f4d51dffc6c0 ("Linux 5.9-rc4")

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>