dt-bindings: mailbox: qcom-ipcc: Add compatible for SC7280

Add IPCC compatible for SC7280 SoC.
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>

Documentation/devicetree/bindings/mailbox/qcom-ipcc.yaml

@@ -26,6 +26,7 @@ properties:
       - enum:
           - qcom,sm8250-ipcc
           - qcom,sm8350-ipcc
+          - qcom,sc7280-ipcc
       - const: qcom,ipcc
 
   reg: