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>

arch/arm/boot/dts/imx51-babbage.dts

@@ -148,7 +148,7 @@ pmic: mc13892@0 {
 		spi-cs-high;
 		reg = <0>;
 		interrupt-parent = <&gpio1>;
-		interrupts = <8 0x4>;
+		interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
 
 		regulators {
 			sw1_reg: sw1 {

arch/arm/boot/dts/imx51.dtsi

@@ -12,6 +12,7 @@
 
 #include "skeleton.dtsi"
 #include "imx51-pinfunc.h"
+#include <dt-bindings/interrupt-controller/irq.h>
 
 / {
 	aliases {