ARM: dts: i.MX51: Switch to use standard IRQ flags definitions

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
diff --git a/arch/arm/boot/dts/imx51-babbage.dts b/arch/arm/boot/dts/imx51-babbage.dts
index 2350d3d..7981e35 100644
--- a/arch/arm/boot/dts/imx51-babbage.dts
+++ b/arch/arm/boot/dts/imx51-babbage.dts
@@ -148,7 +148,7 @@
 		spi-cs-high;
 		reg = <0>;
 		interrupt-parent = <&gpio1>;
-		interrupts = <8 0x4>;
+		interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
 
 		regulators {
 			sw1_reg: sw1 {