ARM i.MX53: mba53: use reset gpio for FEC

Signed-off-by: NMarkus Niebel <Markus.Niebel@tqs.de>
Signed-off-by: NSteffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx53-mba53.dts

@@ -174,6 +174,7 @@
 };
 
 &fec {
+	phy-reset-gpios = <&gpio7 6 0>;
 	status = "okay";
 };