config: use ceph git url for suite
config: use ceph git url for suite

e.g., if the user specifies --ceph-repo, we will use this for the suite,
too.

Signed-off-by: Sage Weil <6dd34506bbd5e58221bbb3e4732d97c91f02277b@redhat.com>

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