Changelog:
- Fix issue with handling invalid gateway addresses.
- Fix issue with handling updates of default gateway.
- Fix issue with DHCP servers that require broadcast flag.
- Add support for option to use gateways as time servers.
- Add support for option to select default technology.
- Add support for Address Conflict Detection (ACD).
- Add support for IPv6 iptables management.
Signed-off-by: Oleksandr Kravchuk <open.source@oleksandr-kravchuk.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>