packaging: updated unattended upgrade mode

This patch provides an option for the upgrade
utility that allows running a DB fix mode
automatically.

Bug-Url: https://bugzilla.redhat.com/893459
Change-Id: Ie8f64a8369633562e4b919cb64c80793c194bff9
Signed-off-by: Alex Lourie <alourie@redhat.com>