If user adds IPv4 address to the network interface, check if the address is a multicast one and add it to multicast group if it is. Fixes #64389 Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
Move "ipv4" command to a separate file. Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>