ARM: tegra: add vcc supply for nct1008 to Cardhu

Add vcc-supply property in the nct1008 node, and set it
as sys_3v3_reg.
change the name of this node to temp-sensor.
Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>

arch/arm/boot/dts/tegra30-cardhu.dtsi

@@ -294,9 +294,10 @@ ldo8_reg: ldo8 {
 			};
 		};
 
-		nct1008 {
+		temperature-sensor@4c {
 			compatible = "onnn,nct1008";
 			reg = <0x4c>;
+			vcc-supply = <&sys_3v3_reg>;
 			interrupt-parent = <&gpio>;
 			interrupts = <TEGRA_GPIO(CC, 2) IRQ_TYPE_LEVEL_LOW>;
 		};