dt-bindings: mailbox: Add compatible for SM8350 IPCC

Add the compatible string for SM8350 IPCC block on this SoC
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>

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

@@ -25,6 +25,7 @@ properties:
     items:
       - enum:
           - qcom,sm8250-ipcc
+          - qcom,sm8350-ipcc
       - const: qcom,ipcc
 
   reg: