[autotest] Fix provision job in test_that

--provision arg in autoserv was changed, which breaks test_that's
run_provisioning_job. This CL updates the method with correct autoserv command
line args: ['--provision', '--job-labels', build]

BUG=chromium:492817
TEST=test_that --build veyron_jerry-release/R44-7058.0.0
172.27.215.232 dummy_Pass

Change-Id: I6f67a854e897234396d2087a2b6417fbd6cbcbed
Reviewed-on: https://chromium-review.googlesource.com/273863
Tested-by: Dan Shi <dshi@chromium.org>
Reviewed-by: Aviv Keshet <akeshet@chromium.org>
Commit-Queue: Dan Shi <dshi@chromium.org>
1 file changed