Added note to neutron.conf
Added note to neutron.conf

Added note to neutron.conf which clarifies where database
connection attribute should be set.

Change-Id: Ic0631cff789046528cae8622d935b65ae9b012cb
Closes-Bug: #1261298

virtualopensystems/neutron,cloudbase/neutron,miyakz1192/neutron,paninetworks/neutron,mahak/neutron,cloudbase/neutron-virtualbox,sasukeh/neutron,leeseulstack/openstack,takeshineshiro/neutron,vivekanand1101/neutron,dhanunjaya/neutron,yanheven/neutron,alexandrucoman/vbox-neutron-agent,rdo-management/neutron,asgard-lab/neutron,openstack/neutron,antonioUnina/neutron,redhat-openstack/neutron,shahbazn/neutron,MaximNevrov/neutron,klmitch/neutron,mattt416/neutron,mahak/neutron,jerryz1982/neutron,vveerava/Openstack,Metaswitch/calico-neutron,skyddv/neutron,JianyuWang/neutron,jacknjzhou/neutron,NeCTAR-RC/neutron,waltBB/neutron_read,cernops/neutron,magic0704/neutron,leeseuljeong/leeseulstack_neutron,yamahata/tacker,magic0704/neutron,blueboxgroup/neutron,sasukeh/neutron,swdream/neutron,openstack/neutron,gkotton/neutron,CiscoSystems/neutron,yanheven/neutron,noironetworks/neutron,igor-toga/local-snat,JioCloud/neutron,wolverineav/neutron,miyakz1192/neutron,blueboxgroup/neutron,Stavitsky/neutron,CiscoSystems/neutron,vveerava/Openstack,barnsnake351/neutron,dims/neutron,SmartInfrastructures/neutron,infobloxopen/neutron,adelina-t/neutron,cisco-openstack/neutron,yamahata/tacker,projectcalico/calico-neutron,bigswitch/neutron,aristanetworks/neutron,suneeth51/neutron,cernops/neutron,JioCloud/neutron,wenhuizhang/neutron,gopal1cloud/neutron,openstack/neutron,adelina-t/neutron,bgxavier/neutron,alexandrucoman/vbox-neutron-agent,vbannai/neutron,mmnelemane/neutron,chitr/neutron,yamahata/tacker,sebrandon1/neutron,Stavitsky/neutron,noironetworks/neutron,huntxu/neutron,antonioUnina/neutron,neoareslinux/neutron,jumpojoy/neutron,vveerava/Openstack,aristanetworks/neutron,suneeth51/neutron,infobloxopen/neutron,igor-toga/local-snat,wolverineav/neutron,yuewko/neutron,mandeepdhami/neutron,NeCTAR-RC/neutron,leeseuljeong/leeseulstack_neutron,jerryz1982/neutron,javaos74/neutron,MaximNevrov/neutron,jacknjzhou/neutron,javaos74/neutron,cloudbase/neutron-virtualbox,yuewko/neutron,shahbazn/neutron,pnavarro/neutron,eonpatapon/neutron,glove747/liberty-neutron,mahak/neutron,CiscoSystems/neutron,jumpojoy/neutron,silenci/neutron,mattt416/neutron,virtualopensystems/neutron,JianyuWang/neutron,mmnelemane/neutron,mandeepdhami/neutron,leeseulstack/openstack,eayunstack/neutron,watonyweng/neutron,silenci/neutron,apporc/neutron,blueboxgroup/neutron,waltBB/neutron_read,chitr/neutron,apporc/neutron,leeseuljeong/leeseulstack_neutron,huntxu/neutron,eayunstack/neutron,gopal1cloud/neutron,rdo-management/neutron,projectcalico/calico-neutron,asgard-lab/neutron,sebrandon1/neutron,glove747/liberty-neutron,eonpatapon/neutron,redhat-openstack/neutron,neoareslinux/neutron,takeshineshiro/neutron,vivekanand1101/neutron,vbannai/neutron,gkotton/neutron,dhanunjaya/neutron,pnavarro/neutron,bigswitch/neutron,paninetworks/neutron,leeseulstack/openstack,cloudbase/neutron,SmartInfrastructures/neutron,vbannai/neutron,skyddv/neutron,gkotton/neutron,wenhuizhang/neutron,cisco-openstack/neutron,SamYaple/neutron,dims/neutron,SamYaple/neutron,barnsnake351/neutron,watonyweng/neutron,klmitch/neutron,virtualopensystems/neutron,swdream/neutron,bgxavier/neutron,Metaswitch/calico-neutron