- host mode:
igmp_listen - API to signal that the host has joined an (S,G)
- route mode:
igmp_enable - API to enable the reception of host IGMP messages
igmp_event - API to report the host join/leave from an (S,G)
Change-Id: Id180ec27dee617d33ab3088f5dcf6125d3aa9c8f
Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>