arm64: dts: qcom: Add pmu node to sdm845

Add the CPU PMU on sdm845 to get perf support for hardware events.
Signed-off-by: NStephen Boyd <swboyd@chromium.org>
Reviewed-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: NAndy Gross <andy.gross@linaro.org>

arch/arm64/boot/dts/qcom/sdm845.dtsi

@@ -152,6 +152,11 @@
 		};
 	};
 
+	pmu {
+		compatible = "arm,armv8-pmuv3";
+		interrupts = <GIC_PPI 5 IRQ_TYPE_LEVEL_HIGH>;
+	};
+
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts = <GIC_PPI 1 IRQ_TYPE_LEVEL_LOW>,