[cr-buildbucket.cfg] Add major windows version to builders

Assign everything windows 10 unless the buildername suggests otherwise.

Bug: 840631
TBR: tandrii
Change-Id: If9f6c44cf7aaa4afd9b8a4abb09ec7aa052218ad
Reviewed-on: https://chromium-review.googlesource.com/1066865
Reviewed-by: Ryan Tseng <[email protected]>
Commit-Queue: Ryan Tseng <[email protected]>
Cr-Commit-Position: refs/heads/master@{#560113}
1 file changed