dt-bindings: display: mediatek: dpi: Add compatible for MediaTek MT8188

For MT8188, the vdosys0 only supports 1T1P mode while the vdosys0 supports
2T1P mode in MT8195. So we need to add dt-binding documentation of dpi for
MediaTek MT8188 SoC.

Signed-off-by: xinlei lee <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/[email protected]/
Signed-off-by: Chun-Kuang Hu <[email protected]>

Author: panghu-xinlei

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

@@ -23,6 +23,7 @@ properties:
       - mediatek,mt8173-dpi
       - mediatek,mt8183-dpi
       - mediatek,mt8186-dpi
+      - mediatek,mt8188-dp-intf
       - mediatek,mt8192-dpi
       - mediatek,mt8195-dp-intf