dt-bindings: display: mediatek: dpi: Add compatible for MediaTek MT6795

Add a compatible string for the MediaTek Helio X10 MT6795 SoC, using
the same parameters as MT8183.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20230412112739.160376-4-angelogioacchino.delregno@collabora.com/Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>

Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml

@@ -17,7 +17,8 @@ description: |
 
 properties:
   compatible:
-    enum:
+    oneOf:
+      - enum:
           - mediatek,mt2701-dpi
           - mediatek,mt7623-dpi
           - mediatek,mt8173-dpi
@@ -26,6 +27,10 @@ properties:
           - mediatek,mt8188-dp-intf
           - mediatek,mt8192-dpi
           - mediatek,mt8195-dp-intf
+      - items:
+          - enum:
+              - mediatek,mt6795-dpi
+          - const: mediatek,mt8183-dpi
 
   reg:
     maxItems: 1