arm64: dts: imx8: use defines for interrupts

Replace hard-coded interrupt flags with standard defines for
readability.  No changes in resulting DTBs.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi

@@ -400,7 +400,7 @@ ptn5110: tcpc@50 {
 		pinctrl-0 = <&pinctrl_typec1>;
 		reg = <0x50>;
 		interrupt-parent = <&gpio2>;
-		interrupts = <11 8>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
 		status = "okay";
 
 		typec1_con: connector {

arch/arm64/boot/dts/freescale/imx8qm-mek.dts

@@ -193,7 +193,7 @@ light-sensor@44 {
 		compatible = "isil,isl29023";
 		reg = <0x44>;
 		interrupt-parent = <&lsio_gpio4>;
-		interrupts = <11 2>;
+		interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
 	};
 
 	pressure-sensor@60 {