packaging: setup: validate full fqdn
packaging: setup: validate full fqdn

ovirt-engine must validate the full fqdn instead of just the domain part
of the hostname.

Change-Id: Ibd848130c2da7285c08500f7ef69d4d0069749f0
Signed-off-by: Rafael Martins <e932aff117fa9c06608489444840300abe9898ec@redhat.com>

OpenUniversity/ovirt-engine,OpenUniversity/ovirt-engine,OpenUniversity/ovirt-engine,OpenUniversity/ovirt-engine,OpenUniversity/ovirt-engine