cmd: env: add -nv option for UEFI non-volatile variable

With this option, -nv, at "setenv -e" command, a variable will be defined
as non-volatile.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2 files changed