Move this to Kconfig and clean up board config files that use it. Also rename it to CONFIG_ETH_DESIGNWARE to fit with the naming that exists in drivers/net/Kconfig.
Signed-off-by: Simon Glass Version 1: Acked-by: Joe Hershberger
CONFIG_SPL=y CONFIG_ARM=y CONFIG_TARGET_X600=y CONFIG_ETH_DESIGNWARE=y CONFIG_NETDEVICES=y CONFIG_NET=y
