ARM: tegra: nexus7: Add interrupt to temperature sensor node

The TEMP_ALERT pin of LM90 temperature sensor is connected to Tegra SoC.
Add interrupt property to the temperature sensor for completeness.
Signed-off-by: NDmitry Osipenko <digetx@gmail.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>

arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi

@@ -920,6 +920,10 @@
 			compatible = "onnn,nct1008";
 			reg = <0x4c>;
 			vcc-supply = <&vdd_3v3_sys>;
+
+			interrupt-parent = <&gpio>;
+			interrupts = <TEGRA_GPIO(S, 3) IRQ_TYPE_EDGE_FALLING>;
+
 			#thermal-sensor-cells = <1>;
 		};