CBQE-0: fix NameError: global name 'recoveryType' is not defined

almost all test failed with the error
http://qa.sc.couchbase.com/job/centos_x64--00_02-graceful-failover-P0/3/consoleFull

Change-Id: Ic641738359e2bf4d2bf989d7d5402cae87e7afb1
Reviewed-on: http://review.couchbase.org/35551
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>
Tested-by: Andrei Baranouski <andrei.baranouski@gmail.com>