ARM: dts: arria10: add PMU node

Add the PMU node for Arria10.
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>

arch/arm/boot/dts/socfpga_arria10.dtsi

@@ -15,13 +15,13 @@ cpus {
 		#size-cells = <0>;
 		enable-method = "altr,socfpga-a10-smp";
 
-		cpu@0 {
+		cpu0: cpu@0 {
 			compatible = "arm,cortex-a9";
 			device_type = "cpu";
 			reg = <0>;
 			next-level-cache = <&L2>;
 		};
-		cpu@1 {
+		cpu1: cpu@1 {
 			compatible = "arm,cortex-a9";
 			device_type = "cpu";
 			reg = <1>;
@@ -29,6 +29,15 @@ cpu@1 {
 		};
 	};
 
+	pmu: pmu@ff111000 {
+		compatible = "arm,cortex-a9-pmu";
+		interrupt-parent = <&intc>;
+		interrupts = <0 124 4>, <0 125 4>;
+		interrupt-affinity = <&cpu0>, <&cpu1>;
+		reg = <0xff111000 0x1000>,
+		      <0xff113000 0x1000>;
+	};
+
 	intc: intc@ffffd000 {
 		compatible = "arm,cortex-a9-gic";
 		#interrupt-cells = <3>;