arm: baltos: switch to driver model for the net and mdio driver

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
diff --git a/configs/am335x_baltos_defconfig b/configs/am335x_baltos_defconfig
index 63f0da9..2781d49 100644
--- a/configs/am335x_baltos_defconfig
+++ b/configs/am335x_baltos_defconfig
@@ -55,6 +55,8 @@
 CONFIG_PHY_ADDR_ENABLE=y
 CONFIG_PHY_ATHEROS=y
 CONFIG_PHY_SMSC=y
+CONFIG_DM_ETH=y
+CONFIG_DM_MDIO=y
 CONFIG_MII=y
 CONFIG_DRIVER_TI_CPSW=y
 CONFIG_SPI=y