dt-bindings: arm: qcom: Add xiaomi-lavender with shenchao panel

Add the compatible for the Xiaomi Redmi Note 7 with the Shenchao display
panel.

Signed-off-by: Richard Acayan <[email protected]>

Author: flamingradian

Documentation/devicetree/bindings/arm/qcom.yaml

@@ -905,6 +905,7 @@ properties:
               - xiaomi,jasmine
               - xiaomi,lavender
               - xiaomi,lavender-boe
+              - xiaomi,lavender-shenchao
               - xiaomi,lavender-tianma
               - xiaomi,platina
           - const: qcom,sdm660