[cbuildbot] Make toolchain bots run their tests synchronously.
This CL updates the toolchain waterfall buildbots to run their
HWTest phases synchronously (so failures are visible in the build).
It also increases their timeout significantly to allow for this, and
for the recently added oak board.
BUG=chromium:622459
TEST=ran 'run_tests'
Change-Id: I76b40c6fca1456538d9a82b8fdcffe57f3ce8b1c
Reviewed-on: https://chromium-review.googlesource.com/355190
Commit-Ready: Caroline Tice <cmtice@chromium.org>
Tested-by: Caroline Tice <cmtice@chromium.org>
Reviewed-by: Aviv Keshet <akeshet@chromium.org>
Reviewed-by: Luis Lozano <llozano@chromium.org>
3 files changed
