ARM: dts: DRA7: Add hwspinlock node

Add the hwspinlock device tree node for DRA7 SoCs.
Signed-off-by: NSuman Anna <s-anna@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

arch/arm/boot/dts/dra7.dtsi

@@ -464,6 +464,13 @@
 			ti,hwmods = "wd_timer2";
 		};
 
+		hwspinlock: spinlock@4a0f6000 {
+			compatible = "ti,omap4-hwspinlock";
+			reg = <0x4a0f6000 0x1000>;
+			ti,hwmods = "spinlock";
+			#hwlock-cells = <1>;
+		};
+
 		i2c1: i2c@48070000 {
 			compatible = "ti,omap4-i2c";
 			reg = <0x48070000 0x100>;