packaging: setup: enforcing required networks configuration additional hosts

On additional hosts, waiting for the user to configure
the additional required networks before checking
host status.

Change-Id: I259b78e6a5c3009c29a7e3c8573500f12247acbc
Bug-Url: https://bugzilla.redhat.com/1086032
Signed-off-by: Simone Tiraboschi <stirabos@redhat.com>