ARM: dts: imx28-apf28: fix mac0 gpio polarity

Signed-off-by: NGwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com>
Signed-off-by: NSebastien Szymanski <sebastien.szymanski@armadeus.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx28-apf28.dts

@@ -78,7 +78,7 @@ mac0: ethernet@800f0000 {
 			phy-mode = "rmii";
 			pinctrl-names = "default";
 			pinctrl-0 = <&mac0_pins_a>;
-			phy-reset-gpios = <&gpio4 13 0>;
+			phy-reset-gpios = <&gpio4 13 GPIO_ACTIVE_LOW>;
 			status = "okay";
 		};
 	};