Add rsync deb package for swift
Add rsync deb package for swift

The rsync debian package is required for swift service. This
requirement has been covered by rpms but not for deb packages.

Change-Id: Iefd1302be9c7fd80e037bbae3638602d6d823580

openstack-dev/devstack,openstack-dev/devstack,nawawi/openstack,nawawi/openstack