Fix missing nova database.connection
Fix missing nova database.connection

The database.connection value was incorrectly inside the nova.baremetal
conditional in the nova.conf template.

Change-Id: I398ba7bca46b66031e6ed68611fdd86f839c7cbc

agroup/tripleo-puppet-elements,rdo-management/tripleo-image-elements,agroup/tripleo-puppet-elements,agroup/tripleo-puppet-elements,rdo-management/tripleo-image-elements,openstack/tripleo-image-elements,openstack/tripleo-image-elements,radez/tripleo-image-elements,radez/tripleo-image-elements,agroup/tripleo-puppet-elements