ARM: dts: imx28-duckbill: use symbolic names from gpio.h

Use GPIO_ACTIVE_HIGH and GPIO_ACTIVE_LOW instead of 0 and 1.
Signed-off-by: Michael Heimpold <mhei@heimpold.de>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>

arch/arm/boot/dts/imx28-duckbill.dts

@@ -110,12 +110,12 @@ leds {
 
 		status {
 			label = "duckbill:green:status";
-			gpios = <&gpio3 5 0>;
+			gpios = <&gpio3 5 GPIO_ACTIVE_HIGH>;
 		};
 
 		failure {
 			label = "duckbill:red:status";
-			gpios = <&gpio3 4 0>;
+			gpios = <&gpio3 4 GPIO_ACTIVE_HIGH>;
 		};
 	};
 };