ARM: dts: imx6q-sabrelite: PHY reset is active-low

Note that the fec driver code currently hard-codes an active-low
reset, regardless of the flags in the device tree.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx6qdl-sabrelite.dtsi

@@ -151,7 +151,7 @@ &fec {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet>;
 	phy-mode = "rgmii";
-	phy-reset-gpios = <&gpio3 23 0>;
+	phy-reset-gpios = <&gpio3 23 GPIO_ACTIVE_LOW>;
 	txen-skew-ps = <0>;
 	txc-skew-ps = <3000>;
 	rxdv-skew-ps = <0>;