arm64: tegra: Add DSU PMUs for Tegra234

Populate the DynamIQ Shared Unit (DSU) Performance Monitor Unit (PMU)
devices for Tegra234 which has one DSU PMU per CPU cluster.

Signed-off-by: Jon Hunter <[e-mail]>
Signed-off-by: Thierry Reding <[e-mail]>

arch/arm64/boot/dts/nvidia/tegra234.dtsi

···
 		};
 	};
 
+	dsu-pmu0 {
+		compatible = "arm,dsu-pmu";
+		interrupts = <GIC_SPI 547 IRQ_TYPE_LEVEL_HIGH>;
+		cpus = <&cpu0_0>, <&cpu0_1>, <&cpu0_2>, <&cpu0_3>;
+	};
+
+	dsu-pmu1 {
+		compatible = "arm,dsu-pmu";
+		interrupts = <GIC_SPI 548 IRQ_TYPE_LEVEL_HIGH>;
+		cpus = <&cpu1_0>, <&cpu1_1>, <&cpu1_2>, <&cpu1_3>;
+	};
+
+	dsu-pmu2 {
+		compatible = "arm,dsu-pmu";
+		interrupts = <GIC_SPI 549 IRQ_TYPE_LEVEL_HIGH>;
+		cpus = <&cpu2_0>, <&cpu2_1>, <&cpu2_2>, <&cpu2_3>;
+	};
+
 	pmu {
 		compatible = "arm,cortex-a78-pmu";
 		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_HIGH>;