dt-bindings: clock: Add RPMHCC bindings for SM6350

Add bindings and update documentation for clock rpmh driver on SM6350.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20210820203243.230157-2-konrad.dybcio@somainline.org
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

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

@@ -22,6 +22,7 @@ properties:
       - qcom,sc8180x-rpmh-clk
       - qcom,sdm845-rpmh-clk
       - qcom,sdx55-rpmh-clk
+      - qcom,sm6350-rpmh-clk
       - qcom,sm8150-rpmh-clk
       - qcom,sm8250-rpmh-clk
       - qcom,sm8350-rpmh-clk