dt-bindings: firmware: document Qualcomm QCS404 and SM6125 SCM

Document the compatible for Qualcomm QCS404 and SM6125 SCM.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220622115109.6724-1-krzysztof.kozlowski@linaro.org

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

@@ -23,8 +23,10 @@ Required properties:
  * "qcom,scm-msm8994"
  * "qcom,scm-msm8996"
  * "qcom,scm-msm8998"
+ * "qcom,scm-qcs404"
  * "qcom,scm-sc7180"
  * "qcom,scm-sc7280"
+ * "qcom,scm-sm6125"
  * "qcom,scm-sdm845"
  * "qcom,scm-sdx55"
  * "qcom,scm-sm6350"