Update L3 agent drivers singletons to look at new agent
Update L3 agent drivers singletons to look at new agent

L3 agent drivers are singletons. They're created once, and hold
self.l3_agent. During testing, the agent is tossed away and
re-built, but the drivers singletons are pointing at the old
agent, and its old configuration.

Change-Id: Ie8a15318e71ea47cccad3b788751d914d51cbf18
Closes-Bug: #1404662

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