arm64: dts: exynos: Remove generic arm,armv8-pmuv3 compatible

The ARM PMU node is described enough with first compatible so remove the
arm,armv8-pmuv3 to fix dtschema warnings like:

    arm-pmu: compatible: Additional items are not allowed ('arm,armv8-pmuv3' was unexpected)
    arm-pmu: compatible: ['arm,cortex-a57-pmu', 'arm,armv8-pmuv3'] is too long
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>

arch/arm64/boot/dts/exynos/exynos5433.dtsi

@@ -24,7 +24,7 @@ / {
 	interrupt-parent = <&gic>;
 
 	arm_a53_pmu {
-		compatible = "arm,cortex-a53-pmu", "arm,armv8-pmuv3";
+		compatible = "arm,cortex-a53-pmu";
 		interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>,
 			     <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>,
 			     <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
@@ -33,7 +33,7 @@ arm_a53_pmu {
 	};
 
 	arm_a57_pmu {
-		compatible = "arm,cortex-a57-pmu", "arm,armv8-pmuv3";
+		compatible = "arm,cortex-a57-pmu";
 		interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>,
 			     <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>,
 			     <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,

arch/arm64/boot/dts/exynos/exynos7.dtsi

@@ -29,7 +29,7 @@ aliases {
 	};
 
 	arm-pmu {
-		compatible = "arm,cortex-a57-pmu", "arm,armv8-pmuv3";
+		compatible = "arm,cortex-a57-pmu";
 		interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>,
 			     <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>,
 			     <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>,