dt-bindings: firmware: qcom,scm: document MSM8226 clocks

Document the clocks (core, bus and iface) used on MSM8226 SCM.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221122092345.44369-1-krzysztof.kozlowski@linaro.org

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

@@ -111,6 +111,7 @@ allOf:
             enum:
               - qcom,scm-apq8084
               - qcom,scm-mdm9607
+              - qcom,scm-msm8226
               - qcom,scm-msm8916
               - qcom,scm-msm8953
               - qcom,scm-msm8974