ARM: ux500: Enable the user LED on Snowball via Device Tree

This patch enables and illuminates the user_led on the
Snowball low-cost development board using DT. It also
removes initialisation carried out from platform code.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
diff --git a/arch/arm/boot/dts/snowball.dts b/arch/arm/boot/dts/snowball.dts
index 68f66f3..aefcb7f 100644
--- a/arch/arm/boot/dts/snowball.dts
+++ b/arch/arm/boot/dts/snowball.dts
@@ -77,6 +77,7 @@
 		used-led {
 			label = "user_led";
 			gpios = <&gpio4 14 0x4>;
+			default-state = "on";
 		};
 	};