CBQE-0: add test_params in LINUX_JOB_TEMPLATE.xml

Change-Id: I8a1a97f83021a8ae93083145d78043c360852b6f
Reviewed-on: http://review.couchbase.org/37270
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>
Tested-by: Andrei Baranouski <andrei.baranouski@gmail.com>