CBQE-0 add timeout break in touch test

Change-Id: I0df412541bfb57ce09b4416d4f06e2ba0ea7213c
Reviewed-on: http://review.couchbase.org/35695
Reviewed-by: Ketaki Gangal <ketakigangal@gmail.com>
Tested-by: Thuan Nguyen <soccon@gmail.com>