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/db-88f6720_defconfig b/configs/db-88f6720_defconfig
index d54d9c3..ab64826 100644
--- a/configs/db-88f6720_defconfig
+++ b/configs/db-88f6720_defconfig
@@ -43,6 +43,7 @@
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_MACRONIX=y
 CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_PHY_GIGE=y
 CONFIG_MVPP2=y
 CONFIG_DEBUG_UART_BASE=0xf1012000
 CONFIG_DEBUG_UART_CLOCK=250000000