dt-bindings: media: mediatek: mdp3: Add support for MT8188 RDMA

Add a compatible for MediaTek MT8188 RDMA, which supports only a
subset of the MDP3 components of its similar MT8195 counterpart.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml

@@ -23,6 +23,7 @@ properties:
     oneOf:
       - enum:
           - mediatek,mt8183-mdp3-rdma
+          - mediatek,mt8188-mdp3-rdma
           - mediatek,mt8195-mdp3-rdma
           - mediatek,mt8195-vdo1-rdma
       - items: