dt-bindings: soc: mediatek: Add display mutex support for MT6795

Add compatible for MT6795 Helio X10 SoC.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220913140121.403637-2-angelogioacchino.delregno@collabora.comSigned-off-by: Matthias Brugger <matthias.bgg@gmail.com>

Documentation/devicetree/bindings/soc/mediatek/mediatek,mutex.yaml

@@ -26,6 +26,7 @@ properties:
     enum:
       - mediatek,mt2701-disp-mutex
       - mediatek,mt2712-disp-mutex
+      - mediatek,mt6795-disp-mutex
       - mediatek,mt8167-disp-mutex
       - mediatek,mt8173-disp-mutex
       - mediatek,mt8183-disp-mutex