ARM: ux500: use symbolic names for interrupt flags

This switches to including <dt-bindings/interrupt-controller/irq.h>
and referencing the apropriate flags from there instead of
open-coding the flag numerals everywhere in the ux500 device
trees.

Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/arch/arm/boot/dts/snowball.dts b/arch/arm/boot/dts/snowball.dts
index c0a34a6..06982dd 100644
--- a/arch/arm/boot/dts/snowball.dts
+++ b/arch/arm/boot/dts/snowball.dts
@@ -105,7 +105,7 @@
 			ethernet@0 {
 				compatible = "smsc,lan9115";
 				reg = <0 0x10000>;
-				interrupts = <12 0x1>;
+				interrupts = <12 IRQ_TYPE_EDGE_RISING>;
 				interrupt-parent = <&gpio4>;
 				vdd33a-supply = <&en_3v3_reg>;
 				vddvario-supply = <&db8500_vape_reg>;