dt-bindings: arm: qcom: Add Xiaomi Pad 6 (xiaomi-pipa)

Add a compatible for Xiaomi Pad 6.
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Luka Panio <lukapanio@gmail.com>
Link: https://lore.kernel.org/r/20231125220315.118922-1-lukapanio@gmail.comSigned-off-by: Bjorn Andersson <andersson@kernel.org>

Documentation/devicetree/bindings/arm/qcom.yaml

@@ -1013,6 +1013,7 @@ properties:
               - sony,pdx203-generic
               - sony,pdx206-generic
               - xiaomi,elish
+              - xiaomi,pipa
           - const: qcom,sm8250
 
       - items: