Add oslo.db to config generator
Add oslo.db to config generator

Otherwise we miss the oslo.db configuration option in the sample config
file.

Closes-Bug: 1379808

Change-Id: I3a70e5da42562081002286d37ba1a200150c8cfc

eayunstack/ceilometer,Juniper/ceilometer,ityaptin/ceilometer,fabian4/ceilometer,chungg/aodh,MisterPup/Ceilometer-Juno-Extension,cernops/ceilometer,r-mibu/ceilometer,maestro-hybrid-cloud/ceilometer,chungg/aodh,MisterPup/Ceilometer-Juno-Extension,isyippee/ceilometer,isyippee/ceilometer,openstack/aodh,redhat-openstack/ceilometer,ityaptin/ceilometer,sileht/aodh,openstack/ceilometer,pczerkas/aodh,froyobin/ceilometer,mathslinux/ceilometer,idegtiarov/ceilometer,mathslinux/ceilometer,m1093782566/openstack_org_ceilometer,pkilambi/ceilometer,redhat-openstack/ceilometer,pkilambi/ceilometer,pczerkas/aodh,cernops/ceilometer,Juniper/ceilometer,fabian4/ceilometer,sileht/aodh,m1093782566/openstack_org_ceilometer,openstack/aodh,idegtiarov/ceilometer,r-mibu/ceilometer,openstack/ceilometer,eayunstack/ceilometer,maestro-hybrid-cloud/ceilometer,froyobin/ceilometer