GitLab

These bots often time out during clobber builds, blocking clang rolls.
Bump the -j number to those used by similar bots.

Bug: 903259
Change-Id: I4ea85b111faf9bf0a441c18730a6a8d0bee20d23
Reviewed-on: https://chromium-review.googlesource.com/c/1326153
Commit-Queue: Hans Wennborg <hans@chromium.org>
Reviewed-by: Takuto Ikuta <tikuta@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606437}