configs: Re-sync with cmd/Kconfig

Update the config.h and defconfig files for the commands that 8e3c036
converted over to Kconfig

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/ac14xx_defconfig b/configs/ac14xx_defconfig
index d839fc8..36fb7af 100644
--- a/configs/ac14xx_defconfig
+++ b/configs/ac14xx_defconfig
@@ -4,8 +4,10 @@
 CONFIG_FIT=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_SYS_PROMPT="ac14xx> "
+CONFIG_CMD_ASKENV=y
 CONFIG_CMD_I2C=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_DHCP=y
+CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
 CONFIG_OF_LIBFDT=y