The same function is used twice, so let's make it common.
Signed-off-by: Paweł Owoc <frut3k7@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/18818
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Functions ubootenv_add_mtd, ubootenv_add_sys_mtd and ubootenv_add_mmc
can be shared so make them common.
Signed-off-by: Paweł Owoc <frut3k7@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/18818
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>