CBQE-0: fix remote_util cbtransfer file name

Change-Id: Ie6465cfb7b199c235edc67e4275f0e8d703f5877
Reviewed-on: http://review.couchbase.org/36560
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Parag Agarwal <agarwal.parag@gmail.com>
Tested-by: Parag Agarwal <agarwal.parag@gmail.com>