When lwIP (CONFIG_NET_LWIP) is used instead of legacy stack (CONFIG_NET),
environment flags support associated with network was not built: restore
support of "i" and "m" environment flags.
Signed-off-by: Benjamin ROBIN <dev@benjarobin.fr>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
6aa9c0f453