Use Debian's repo when using Debian
Use Debian's repo when using Debian

manifests/repos.pp was using UCA also when setting-up under Debian.

Change-Id: If83a0c4999e6eb54d61d2b4a8fbcac793b6b7ebb

openstack/puppet-openstack-integration,openstack/puppet-openstack-integration,openstack/puppet-openstack-integration