ARM: dts: N950/N9: add twl_power

Add twl_power for N950/N9. Start with the simplest configuration to just
enable power off.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap3-n950-n9.dtsi

@@ -60,6 +60,11 @@ twl: twl@48 {
 
 &twl {
 	compatible = "ti,twl5031";
+
+	twl_power: power {
+		compatible = "ti,twl4030-power";
+		ti,use_poweroff;
+	};
 };
 
 &twl_gpio {