packaging: setup: use own connection

Revert I7ba25d4b5dc7cb7ab4e3d8beaa52cfb7ac7087b6 .
Requires http://gerrit.ovirt.org/31001 .

We can't use an existing connection when on separate hosts.
Instead just prevent the conflict by making the engine not update the
same row.

Change-Id: Ia6de30c43fbe395fb293eed31930ba4be7d702f5
Bug-Url: https://bugzilla.redhat.com/1080998
Signed-off-by: Yedidyah Bar David <didi@redhat.com>