arm64: dts: renesas: Add Renesas R8A779G0 SoC support

Add initial support for the Renesas R8A779G0 (R-Car V4H) SoC.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20220428135058.597586-3-yoshihiro.shimoda.uh@renesas.com


Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>