ARM: tegra30: Use cpu* labels

Replace cpu paths with labels since those already exist in tree.

Signed-off-by: Maxim Schwalm <maxim.schwalm@gmail.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

Author: maximschwalm

arch/arm/boot/dts/tegra30.dtsi

@@ -1283,10 +1283,7 @@
 			     <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
 			     <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
 			     <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;
-		interrupt-affinity = <&{/cpus/cpu@0}>,
-				     <&{/cpus/cpu@1}>,
-				     <&{/cpus/cpu@2}>,
-				     <&{/cpus/cpu@3}>;
+		interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
 	};
 
 	thermal-zones {