CBQE-2188 add check enterprise edition before execute the test

Change-Id: Ifa2d090e68854ef9aafae29d6c5d55ef5d47ec1d
Reviewed-on: http://review.couchbase.org/35415
Tested-by: Thuan Nguyen <soccon@gmail.com>
Reviewed-by: Ketaki Gangal <ketakigangal@gmail.com>