Enable test_migration
Enable test_migration

After splitting in neutron database was left a number of tables
that don't have any models. Test should be improved to skip these
tables from checking.

Closes-bug: #1401424

Partially-Implements: blueprint services-split

Change-Id: I201b4a310eb26a86765c8541fba6e2d42431cf2a

cloudbase/neutron-virtualbox,sebrandon1/neutron,chitr/neutron,silenci/neutron,suneeth51/neutron,Stavitsky/neutron,blueboxgroup/neutron,jacknjzhou/neutron,wenhuizhang/neutron,skyddv/neutron,yuewko/neutron,eayunstack/neutron,Metaswitch/calico-neutron,sasukeh/neutron,huntxu/neutron,adelina-t/neutron,aristanetworks/neutron,neoareslinux/neutron,dims/neutron,jerryz1982/neutron,klmitch/neutron,skyddv/neutron,chitr/neutron,swdream/neutron,barnsnake351/neutron,wenhuizhang/neutron,paninetworks/neutron,vveerava/Openstack,takeshineshiro/neutron,swdream/neutron,antonioUnina/neutron,dhanunjaya/neutron,javaos74/neutron,javaos74/neutron,vivekanand1101/neutron,apporc/neutron,mmnelemane/neutron,jerryz1982/neutron,CiscoSystems/neutron,CiscoSystems/neutron,bigswitch/neutron,paninetworks/neutron,cloudbase/neutron-virtualbox,takeshineshiro/neutron,bgxavier/neutron,noironetworks/neutron,adelina-t/neutron,vveerava/Openstack,gkotton/neutron,yanheven/neutron,cisco-openstack/neutron,watonyweng/neutron,MaximNevrov/neutron,bigswitch/neutron,JianyuWang/neutron,mmnelemane/neutron,MaximNevrov/neutron,CiscoSystems/neutron,pnavarro/neutron,infobloxopen/neutron,vivekanand1101/neutron,cisco-openstack/neutron,eonpatapon/neutron,asgard-lab/neutron,mahak/neutron,aristanetworks/neutron,sasukeh/neutron,barnsnake351/neutron,leeseuljeong/leeseulstack_neutron,mandeepdhami/neutron,klmitch/neutron,yuewko/neutron,mahak/neutron,antonioUnina/neutron,openstack/neutron,waltBB/neutron_read,pnavarro/neutron,bgxavier/neutron,blueboxgroup/neutron,suneeth51/neutron,dims/neutron,leeseuljeong/leeseulstack_neutron,cloudbase/neutron,miyakz1192/neutron,glove747/liberty-neutron,blueboxgroup/neutron,magic0704/neutron,JioCloud/neutron,SamYaple/neutron,igor-toga/local-snat,huntxu/neutron,vveerava/Openstack,mandeepdhami/neutron,wolverineav/neutron,gkotton/neutron,leeseulstack/openstack,neoareslinux/neutron,waltBB/neutron_read,apporc/neutron,watonyweng/neutron,NeCTAR-RC/neutron,JianyuWang/neutron,leeseulstack/openstack,dhanunjaya/neutron,sebrandon1/neutron,jumpojoy/neutron,Stavitsky/neutron,noironetworks/neutron,mattt416/neutron,cloudbase/neutron,yanheven/neutron,SamYaple/neutron,eonpatapon/neutron,jumpojoy/neutron,igor-toga/local-snat,projectcalico/calico-neutron,shahbazn/neutron,glove747/liberty-neutron,leeseulstack/openstack,alexandrucoman/vbox-neutron-agent,miyakz1192/neutron,projectcalico/calico-neutron,jacknjzhou/neutron,gkotton/neutron,leeseuljeong/leeseulstack_neutron,rdo-management/neutron,openstack/neutron,magic0704/neutron,openstack/neutron,shahbazn/neutron,eayunstack/neutron,JioCloud/neutron,mahak/neutron,asgard-lab/neutron,SmartInfrastructures/neutron,rdo-management/neutron,silenci/neutron,wolverineav/neutron,alexandrucoman/vbox-neutron-agent,mattt416/neutron,SmartInfrastructures/neutron,NeCTAR-RC/neutron,Metaswitch/calico-neutron,infobloxopen/neutron