ARM: tegra: colibri_t20: add i2c-thermtrip

Add i2c-thermtrip which would set the SLEEP MODE bit in the SUPPLYENE
register of the TPS658643 PMIC.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm/boot/dts/tegra20-colibri.dtsi

@@ -598,6 +598,14 @@ pmc@7000e400 {
 		nvidia,core-pwr-good-time = <3845 3845>;
 		nvidia,core-pwr-off-time = <3875>;
 		nvidia,sys-clock-req-active-high;
+
+		/* Set SLEEP MODE bit in SUPPLYENE register of TPS658643 PMIC */
+		i2c-thermtrip {
+			nvidia,i2c-controller-id = <3>;
+			nvidia,bus-addr = <0x34>;
+			nvidia,reg-addr = <0x14>;
+			nvidia,reg-data = <0x8>;
+		};
 	};
 
 	memory-controller@7000f400 {