qa: some test set refuse_client_session, so the cluster log is expe…

…cted

Fixes: http://tracker.ceph.com/issues/66639
Signed-off-by: Venky Shankar <[email protected]>

qa/suites/fs/functional/tasks/admin.yaml

@@ -10,6 +10,7 @@ overrides:
       - \(MDS_CLIENTS_BROKEN_ROOTSQUASH\)
       - report clients with broken root_squash implementation
       - evicting unresponsive client
+      - as file system flag refuse_client_session is set
 tasks:
   - cephfs_test_runner:
       fail_on_skip: false