b6ae9ffaeb0e odhcp6c: allow to request specific ipv6 prefix
Signed-off-by: He Ping <pinghejk@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/17013
Signed-off-by: Petr Štetiar <ynezz@true.cz> [hash, commit]
(cherry picked from commit b0312c1081)
Link: https://github.com/openwrt/openwrt/pull/17097
Signed-off-by: Petr Štetiar <ynezz@true.cz>