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>

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

@@ -23,6 +23,7 @@ properties:
     oneOf:
       - enum:
           - mediatek,mt8183-mdp3-rdma
+          - mediatek,mt8195-mdp3-rdma
           - mediatek,mt8195-vdo1-rdma
       - items:
           - const: mediatek,mt8188-vdo1-rdma
@@ -74,6 +75,9 @@ properties:
     items:
       - description: used for 1st data pipe from RDMA
       - description: used for 2nd data pipe from RDMA
+      - description: used for 3rd data pipe from RDMA
+      - description: used for 4th data pipe from RDMA
+      - description: used for the data pipe from SPLIT
     minItems: 1
 
   interrupts:
@@ -110,6 +114,23 @@ allOf:
         - mboxes
         - mediatek,gce-events
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: mediatek,mt8195-mdp3-rdma
+
+    then:
+      properties:
+        clocks:
+          maxItems: 1
+
+        mboxes:
+          minItems: 5
+
+      required:
+        - mediatek,gce-events
+
   - if:
       properties:
         compatible: