dt-bindings: clock: Add sc8280xp to the RPMh clock controller binding

The Qualcomm SC8280XP has a RPMh clock controller, so add a compatible
for this to the binding.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20220223044516.3776637-1-bjorn.andersson@linaro.org

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

@@ -20,6 +20,7 @@ properties:
       - qcom,sc7180-rpmh-clk
       - qcom,sc7280-rpmh-clk
       - qcom,sc8180x-rpmh-clk
+      - qcom,sc8280xp-rpmh-clk
       - qcom,sdm845-rpmh-clk
       - qcom,sdx55-rpmh-clk
       - qcom,sdx65-rpmh-clk