dt-bindings: arm: qcom: Document SM6375 & Xperia 10 IV

Add compatibles for Sony Xperia 10 IV (PDX225) and the SM6375 SoC
it's based on.

Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221107120920.12593-2-konrad.dybcio@linaro.org

Documentation/devicetree/bindings/arm/qcom.yaml

@@ -59,6 +59,7 @@ description: |
         sdx65
         sm6125
         sm6350
+        sm6375
         sm7225
         sm8150
         sm8250
@@ -737,6 +738,11 @@ properties:
               - sony,pdx213
           - const: qcom,sm6350
 
+      - items:
+          - enum:
+              - sony,pdx225
+          - const: qcom,sm6375
+
       - items:
           - enum:
               - fairphone,fp4