dt-bindings: firmware: document Qualcomm SM8550 SCM

Document the compatible for Qualcomm SM8550 SCM.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230207-topic-sm8550-upstream-scm-bindings-v2-1-ca12bd33fa1c@linaro.org

Documentation/devicetree/bindings/firmware/qcom,scm.yaml

@@ -55,6 +55,7 @@ properties:
           - qcom,scm-sm8250
           - qcom,scm-sm8350
           - qcom,scm-sm8450
+          - qcom,scm-sm8550
           - qcom,scm-qcs404
       - const: qcom,scm
 
@@ -166,6 +167,7 @@ allOf:
             contains:
               enum:
                 - qcom,scm-sm8450
+                - qcom,scm-sm8550
     then:
       properties:
         interconnects: false
@@ -178,6 +180,7 @@ allOf:
             contains:
               enum:
                 - qcom,scm-sm8450
+                - qcom,scm-sm8550
     then:
       properties:
         interrupts: false