Due to major changes (e.g dropping Python 2 support) let's do a major
bump.
Also, contains fixes for functional tests needed after the networking-ovn
code has moved into Neutron and OVN splitting from the OVS repository
upstream.
Change-Id: I1c663556b99f61864d365acdc40661aef93ac27c
Signed-off-by: Lucas Alvares Gomes <lucasagomes@gmail.com>