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>

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

@@ -54,6 +54,7 @@ properties:
           - qcom,scm-sm8250
           - qcom,scm-sm8350
           - qcom,scm-sm8450
+          - qcom,scm-sm8550
           - qcom,scm-qcs404
       - const: qcom,scm
 
@@ -165,6 +166,7 @@ allOf:
             contains:
               enum:
                 - qcom,scm-sm8450
+                - qcom,scm-sm8550
     then:
       properties:
         interconnects: false
@@ -177,6 +179,7 @@ allOf:
             contains:
               enum:
                 - qcom,scm-sm8450
+                - qcom,scm-sm8550
     then:
       properties:
         interrupts: false