arm64: dts: msm8996: Add modem smp2p nodes

This patch adds the SMP2P nodes for the modem.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>

arch/arm64/boot/dts/qcom/msm8996.dtsi

@@ -865,6 +865,30 @@ adsp_smp2p_in: slave-kernel {
 		};
 	};
 
+	modem-smp2p {
+		compatible = "qcom,smp2p";
+		qcom,smem = <435>, <428>;
+
+		interrupts = <GIC_SPI 451 IRQ_TYPE_EDGE_RISING>;
+
+		qcom,ipc = <&apcs 16 14>;
+
+		qcom,local-pid = <0>;
+		qcom,remote-pid = <1>;
+
+		modem_smp2p_out: master-kernel {
+			qcom,entry-name = "master-kernel";
+			#qcom,smem-state-cells = <1>;
+		};
+
+		modem_smp2p_in: slave-kernel {
+			qcom,entry-name = "slave-kernel";
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+		};
+	};
+
 	smp2p-slpi {
 		compatible = "qcom,smp2p";
 		qcom,smem = <481>, <430>;