Adding #openstack-nfv channel

The NFV usecase spans multiple OpenStack projects, so this channel
facilitates the NFV Team to discuss details of NFV related OpenStack
blueprints and patch reviews.

https://wiki.openstack.org/wiki/Teams/NFV

Change-Id: Id9d158a1743e9b5001d9aac56f56f90f1259069a
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Merge "Adding #openstack-nfv channel"