arm64: dts: rockchip: Add AV1 decoder node to rk3588s

Add node for AV1 video decoder.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20231006065334.8117-1-benjamin.gaignard@collabora.com


Signed-off-by: Heiko Stuebner <heiko@sntech.de>