dt-bindings: mailbox: qcom-ipcc: Document the SDX75 IPCC

Document the Inter-Processor Communication Controller on the SDX75 Platform.
Signed-off-by: Rohit Agarwal <quic_rohiagar@quicinc.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>

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

@@ -28,6 +28,7 @@ properties:
           - qcom,sa8775p-ipcc
           - qcom,sc7280-ipcc
           - qcom,sc8280xp-ipcc
+          - qcom,sdx75-ipcc
           - qcom,sm6350-ipcc
           - qcom,sm6375-ipcc
           - qcom,sm8250-ipcc