net/fsl: xgmac_mdio is dependent on OF_MDIO

Signed-off-by: Shruti Kanetkar <Shruti@Freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/freescale/Kconfig b/drivers/net/ethernet/freescale/Kconfig
index 6048dc8..2703083 100644
--- a/drivers/net/ethernet/freescale/Kconfig
+++ b/drivers/net/ethernet/freescale/Kconfig
@@ -67,6 +67,7 @@
 	tristate "Freescale XGMAC MDIO"
 	depends on FSL_SOC
 	select PHYLIB
+	select OF_MDIO
 	---help---
 	  This driver supports the MDIO bus on the Fman 10G Ethernet MACs.