arm: dts: r8a774a1: Import DTS from Linux 5.9-rc4

Synchronize RZ/G2M SoC DTs with mainline Linux 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>
3 files changed