openstack: display reminders before running the suite
openstack: display reminders before running the suite

If --wait, it is useful to display the URL/ssh reminders before waiting
for the suite to complete.

Signed-off-by: Loic Dachary <b6eae37fc74638590e3f9030895d42446505d41b@dachary.org>

ktdreyer/teuthology,dmick/teuthology,ceph/teuthology,SUSE/teuthology,ceph/teuthology,SUSE/teuthology,dmick/teuthology,SUSE/teuthology,ktdreyer/teuthology,dmick/teuthology