ARM: dts: vf610: add performance monitoring unit

All Freescale Vybrid SoC include a Cortex-A5 core which supports
ARM's standard PMU (performance monitoring unit). Include the
monitoring unit into the Cortex-A5 base device tree vf500.dtsi.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/vf500.dtsi

@@ -75,6 +75,15 @@ global_timer: timer@40002200 {
 				clocks = <&clks VF610_CLK_PLATFORM_BUS>;
 			};
 		};
+
+		aips-bus@40080000 {
+			pmu@40089000 {
+				compatible = "arm,cortex-a5-pmu";
+				interrupts = <7 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-affinity = <&a5_cpu>;
+			};
+		};
+
 	};
 };