ARM: multi_v7_defconfig: Select CONFIG_AT803X_PHY

Select CONFIG_AT803X_PHY so that we can boot hummingboard via NFS.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

arch/arm/configs/multi_v7_defconfig

@@ -114,6 +114,7 @@ CONFIG_R8169=y
 CONFIG_SMSC911X=y
 CONFIG_STMMAC_ETH=y
 CONFIG_TI_CPSW=y
+CONFIG_AT803X_PHY=y
 CONFIG_ICPLUS_PHY=y
 CONFIG_USB_PEGASUS=y
 CONFIG_USB_USBNET=y