arm64: dts: renesas: r8a77995: draak: Add R-Car Sound support

This patch adds R-Car Sound support for D3 draak.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87czrdx3z5.wl-kuninori.morimoto.gx@renesas.com


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