Update rh_version supported in downstream
Update rh_version supported in downstream

Signed-off-by: Vasu Kulkarni <fdfdb2cd979b7b8f17791cc46d595851145a3915@redhat.com>

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