dt-bindings: display: msm-dsi-phy-7nm: document the SM8650 DSI PHY

Document the DSI PHY on the SM8650 Platform.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/564970/
Link: https://lore.kernel.org/r/20231030-topic-sm8650-upstream-mdss-v2-1-43f1887c82b8@linaro.orgSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

Documentation/devicetree/bindings/display/msm/dsi-phy-7nm.yaml

@@ -22,6 +22,7 @@ properties:
       - qcom,sm8350-dsi-phy-5nm
       - qcom,sm8450-dsi-phy-5nm
       - qcom,sm8550-dsi-phy-4nm
+      - qcom,sm8650-dsi-phy-4nm
 
   reg:
     items: