dt-bindings: media: mediatek: mdp3: add config for MT8195 RDMA
Added the configuration for MT8195 RDMA. In comparison to MT8183, it
no longer shares SRAM with RSZ, and there are now preconfigured 5 mbox.
Signed-off-by: Moudy Ho <moudy.ho@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>