ceph_manager: wait for all_up in test_map_discontinuity
ceph_manager: wait for all_up in test_map_discontinuity

Signed-off-by: Samuel Just <8c40222f34b9721b5d5709d4ed45337913ea1c3e@inktank.com>

t-miyamae/teuthology,t-miyamae/teuthology,SUSE/teuthology,yghannam/teuthology,ktdreyer/teuthology,caibo2014/teuthology,dmick/teuthology,dmick/teuthology,tchaikov/teuthology,tchaikov/teuthology,robbat2/teuthology,ivotron/teuthology,SUSE/teuthology,robbat2/teuthology,caibo2014/teuthology,SUSE/teuthology,michaelsevilla/teuthology,ivotron/teuthology,dreamhost/teuthology,yghannam/teuthology,dreamhost/teuthology,ceph/teuthology,michaelsevilla/teuthology,ktdreyer/teuthology,ceph/teuthology,dmick/teuthology,zhouyuan/teuthology,zhouyuan/teuthology