engine_page: management info for autoinstall

We should provide management info also for autoinstall, not only
for tradicional TUI registration.

Change-Id: I58250e31b60ba863b851a3b6b0cfa1a59165c44b
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1048929
Signed-off-by: Fabian Deutsch <fabiand@fedoraproject.org>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>