arm64: dts: qcom: shikra: Add TCSR mutex hwlock support

Describe the TCSR mutex hwlock controller and reference it from
the SMEM node to enable proper hardware locking on Shikra.

Signed-off-by: Komal Bajaj <komal.bajaj@oss.qualcomm.com>

Author: Komal-Bajaj

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

@@ -232,6 +232,8 @@
 			compatible = "qcom,smem";
 			reg = <0x0 0x86000000 0x0 0x200000>;
 			no-map;
+
+			hwlocks = <&tcsr_mutex 3>;
 		};
 
 		audio_heap_mem: audio-heap@86200000 {
@@ -319,6 +321,12 @@
 		dma-ranges = <0x0 0x0 0x0 0x0 0x10 0x0>;
 		ranges = <0x0 0x0 0x0 0x0 0x10 0x0>;
 
+		tcsr_mutex: syscon@340000 {
+			compatible = "qcom,tcsr-mutex";
+			reg = <0x0 0x00340000 0x0 0x20000>;
+			#hwlock-cells = <1>;
+		};
+
 		tlmm: pinctrl@500000 {
 			compatible = "qcom,shikra-tlmm";
 			reg = <0x0 0x00500000 0x0 0x800000>;