network: support macaddr in brackets []
ip=ens3:dhcp:1000
ip=ens3:dhcp::54:52:00:ab:cd:ef
ip=ens3:dhcp::[54:52:00:ab:cd:ef]
ip=ens3:dhcp:1000:54:52:00:ab:cd:ef
ip=ens3:dhcp:1000:[54:52:00:ab:cd:ef]
ip=192.168.122.20::192.168.122.1:24:test:ens3:none:1000
ip=192.168.122.20::192.168.122.1:24:test:ens3:none::54:52:00:ab:cd:ef
ip=192.168.122.20::192.168.122.1:24:test:ens3:none::[54:52:00:ab:cd:ef]
ip=192.168.122.20::192.168.122.1:24:test:ens3:none:1000:54:52:00:ab:cd:ef
ip=192.168.122.20::192.168.122.1:24:test:ens3:none:1000:[54:52:00:ab:cd:ef]
ip=::::test:ens3:dhcp:1000
ip=::::test:ens3:dhcp::54:52:00:ab:cd:ef
ip=::::test:ens3:dhcp::[54:52:00:ab:cd:ef]
ip=::::test:ens3:dhcp:1000:54:52:00:ab:cd:ef
ip=::::test:ens3:dhcp:1000:[54:52:00:ab:cd:ef]
(cherry picked from commit
53e4ab71742fc1e5d8112c719c0d154d08815fa1)