The following patch in neutron:
a92647300d0148d5d23f7c16631b192923702a1f
checked the paths to where the securitygroup_db models were located. This
patch fixes the issue by updating the path in the vmware-nsx repo so the
tests pass again.
Change-Id: I7d81ce5cd7ee76928f607d6976ae90b1a7d976a1