arm64: dts: mediatek: mt8188: Add display nodes for vdosys1

Add the vdosys1 display nodes to support the external display pipeline.

Signed-off-by: Fei Shao <fshao@chromium.org>
Link: https://lore.kernel.org/r/20241014111053.2294519-8-fshao@chromium.org


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