dt-bindings: qcom,pdc: Add compatible for SM8550

Document the compatible for SM8550 PDC.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Link: https://lore.kernel.org/r/20231103224304.764730-1-quic_eberman@quicinc.comSigned-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.yaml

@@ -41,6 +41,7 @@ properties:
           - qcom,sm8250-pdc
           - qcom,sm8350-pdc
           - qcom,sm8450-pdc
+          - qcom,sm8550-pdc
       - const: qcom,pdc
 
   reg: