arm64: dts: mediatek: mt8188: Add VDOSYS0/1 support for multimedia

Add support for the two VDOSYS blocks in MT8188, later on used for
various Multimedia related IP, including display and video codecs.

Link: https://lore.kernel.org/r/20240527093908.97574-4-angelogioacchino.delregno@collabora.com


Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>