dt-bindings: mailbox: qcom: Add SC8180X APCS compatible

Add compatible for the Qualcomm SC8180x APCS block to the Qualcomm APCS
binding.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>

Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml

@@ -24,6 +24,7 @@ properties:
       - qcom,msm8998-apcs-hmss-global
       - qcom,qcs404-apcs-apps-global
       - qcom,sc7180-apss-shared
+      - qcom,sc8180x-apss-shared
       - qcom,sdm660-apcs-hmss-global
       - qcom,sdm845-apss-shared
       - qcom,sm8150-apss-shared