ARM: dts: omap4-kc1: LEDs support

This adds support for the Kindle Fire (first generation) power button LEDs, that
are wired to the TWL6030 PWM outputs.
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap4-kc1.dts

@@ -17,6 +17,22 @@ memory {
 		device_type = "memory";
 		reg = <0x80000000 0x20000000>; /* 512 MB */
 	};
+
+	pwmleds {
+		compatible = "pwm-leds";
+
+		green {
+			label = "green";
+			pwms = <&twl_pwm 0 7812500>;
+			max-brightness = <127>;
+		};
+
+		orange {
+			label = "orange";
+			pwms = <&twl_pwm 1 7812500>;
+			max-brightness = <127>;
+		};
+	};
 };
 
 &omap4_pmx_core {