ARM: dts: msm: Add ipc-spinlock device node for sdm670

Add the ipc-spinlock device node to facilitate locking between apps
and non-apps processors.

CRs-Fixed: 2059063
Change-Id: I474dcf4e29f981f6eab69e09368d513dbb2c17ee
Signed-off-by: Dhoat Harpal <hdhoat@codeaurora.org>
diff --git a/arch/arm64/boot/dts/qcom/sdm670.dtsi b/arch/arm64/boot/dts/qcom/sdm670.dtsi
index 90d4547..414ddc5 100644
--- a/arch/arm64/boot/dts/qcom/sdm670.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm670.dtsi
@@ -681,6 +681,12 @@
 				  "l3-scu-faultirq";
 	};
 
+	qcom,ipc-spinlock@1f40000 {
+		compatible = "qcom,ipc-spinlock-sfpb";
+		reg = <0x1f40000 0x8000>;
+		qcom,num-locks = <8>;
+	};
+
 	qcom,chd_sliver {
 		compatible = "qcom,core-hang-detect";
 		label = "silver";