Update ChromeOS Toolchain buildbot for llvm-next jobs.

Update toolchain buildbot script to report data for
llvm-next builds.

BUG=chromium:677317
TEST=None

Change-Id: I45b25a735ee8ba956d38c1e45d0db2d8acd06e70
Reviewed-on: https://chromium-review.googlesource.com/424317
Commit-Queue: Manoj Gupta <manojgupta@chromium.org>
Tested-by: Manoj Gupta <manojgupta@chromium.org>
Reviewed-by: Yunlian Jiang <yunlian@chromium.org>
1 file changed