ARM: omap2plus_defconfig: Enable MDIO Bus/PHY emulation support

MDIO Bus/PHY emulation with fixed speed/link PHYs will be used in
Baltos iR5221 devices to connect to ICPlus IP175D switch IC.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/configs/omap2plus_defconfig

@@ -178,6 +178,7 @@ CONFIG_TI_CPTS=y
 # CONFIG_NET_VENDOR_WIZNET is not set
 CONFIG_AT803X_PHY=y
 CONFIG_SMSC_PHY=y
+CONFIG_FIXED_PHY=y
 CONFIG_DP83867_PHY=y
 CONFIG_USB_USBNET=m
 CONFIG_USB_NET_SMSC75XX=m