ARM: tegra: Add CPU regulator to the Jetson TK1 device tree

Specify the CPU voltage regulator for the cpufreq driver.
Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Signed-off-by: Mikko Perttunen <mikko.perttunen@kapsi.fi>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm/boot/dts/tegra124-jetson-tk1.dts

@@ -1739,6 +1739,12 @@ clk32k_in: clock@0 {
 		};
 	};
 
+	cpus {
+		cpu@0 {
+			vdd-cpu-supply = <&vdd_cpu>;
+		};
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";