ARM: dts: imx6ul-pico-hobbit: Fix the 'interrupts' property

The 'interrupts' property has an extra cell by mistake.

Fix this, so that the following build warning is gone:

 DTC     arch/arm/boot/dts/imx6ul-pico-hobbit.dtb
arch/arm/boot/dts/imx6ul-pico-hobbit.dtb: Warning (interrupts_property): interrupts size is (12), expected multiple of 8 in /soc/aips-bus@2000000/ethernet@20b4000/mdio/ethernet-phy@1
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6ul-pico-hobbit.dts

@@ -175,7 +175,7 @@ ethphy1: ethernet-phy@1 {
 			reg = <1>;
 			max-speed = <100>;
 			interrupt-parent = <&gpio5>;
-			interrupts = <6 IRQ_TYPE_LEVEL_LOW 0>;
+			interrupts = <6 IRQ_TYPE_LEVEL_LOW>;
 		};
 	};
 };