ARM: dts: vf-colibri: add CLKOUT pin to pinctrl of FEC1

On the Colibri module, the RMII clock for the Ethernet PHY is
generated by the SoC. This patch adds that missing pin to the
pinctrl of FEC1. Because the boot loader initializes this pin,
ethernet worked even without this pin so far.
Signed-off-by: NStefan Agner <stefan@agner.ch>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/vf-colibri.dtsi

@@ -121,6 +121,7 @@
 
 		pinctrl_fec1: fec1grp {
 			fsl,pins = <
+				VF610_PAD_PTA6__RMII_CLKOUT		0x30d2
 				VF610_PAD_PTC9__ENET_RMII1_MDC		0x30d2
 				VF610_PAD_PTC10__ENET_RMII1_MDIO	0x30d3
 				VF610_PAD_PTC11__ENET_RMII1_CRS		0x30d1