CBQE-2197 set transparent hugepage to never

Change-Id: If75a5e5b5c5837a3661aade7d259d6b14ad376c3
Reviewed-on: http://review.couchbase.org/35688
Reviewed-by: Ashvinder Singh <ashvinder@couchbase.com>
Reviewed-by: Ketaki Gangal <ketakigangal@gmail.com>
Tested-by: Thuan Nguyen <soccon@gmail.com>