ARM: tegra: nexus7: Add i2c-thermtrip node

Add i2c-thermtrip node which enables emergency shutdown by PMC on
SoC die overheat detected by TSENSOR.
Signed-off-by: NDmitry Osipenko <digetx@gmail.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>

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

@@ -182,4 +182,13 @@
 		enable-active-high;
 		vin-supply = <&vdd_3v3_sys>;
 	};
+
+	pmc@7000e400 {
+		i2c-thermtrip {
+			nvidia,i2c-controller-id = <4>;
+			nvidia,bus-addr = <0x3c>;
+			nvidia,reg-addr = <0x41>;
+			nvidia,reg-data = <0xe0>;
+		};
+	};
 };

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

@@ -147,4 +147,13 @@
 		gpio = <&pmic 7 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
 	};
+
+	pmc@7000e400 {
+		i2c-thermtrip {
+			nvidia,i2c-controller-id = <4>;
+			nvidia,bus-addr = <0x2d>;
+			nvidia,reg-addr = <0x3f>;
+			nvidia,reg-data = <0x80>;
+		};
+	};
 };