ARM: dts: OMAP4/5: Use existing constants for IRQs

Use the constants defined in include/dt-bindings/interrupt-controller/
to enhance readability.

Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>
diff --git a/arch/arm/boot/dts/omap4460.dtsi b/arch/arm/boot/dts/omap4460.dtsi
index 41762c2..19628b1 100644
--- a/arch/arm/boot/dts/omap4460.dtsi
+++ b/arch/arm/boot/dts/omap4460.dtsi
@@ -25,8 +25,8 @@
 
 	pmu {
 		compatible = "arm,cortex-a9-pmu";
-		interrupts = <0 54 0x4>,
-			     <0 55 0x4>;
+		interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
 		ti,hwmods = "debugss";
 	};
 };