dt-bindings: clock: Add support for MSM8992/4 MMCC

Document the multimedia clock controller found on MSM8992/4.

Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20210618111435.595689-1-konrad.dybcio@somainline.org
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Author: Konrad Dybcio

Documentation/devicetree/bindings/clock/qcom,mmcc.yaml

@@ -22,6 +22,8 @@ properties:
       - qcom,mmcc-msm8660
       - qcom,mmcc-msm8960
       - qcom,mmcc-msm8974
+      - qcom,mmcc-msm8992
+      - qcom,mmcc-msm8994
       - qcom,mmcc-msm8996
       - qcom,mmcc-msm8998
       - qcom,mmcc-sdm630