configs: Finish migration of PHY_GIGE

Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/spear300_usbtty_defconfig b/configs/spear300_usbtty_defconfig
index 28c594d..c5d4761 100644
--- a/configs/spear300_usbtty_defconfig
+++ b/configs/spear300_usbtty_defconfig
@@ -16,4 +16,5 @@
 # CONFIG_MMC is not set
 CONFIG_MTD_NOR_FLASH=y
 CONFIG_NETDEVICES=y
+CONFIG_PHY_GIGE=y
 CONFIG_ETH_DESIGNWARE=y