Start running kernel_usb suite perbuild

- this will take two more runs per day for total ~60 min additional time
- also, remove auto messages for failed results

BUG=None
TEST=None

Change-Id: I11ea463d495f371766d493373f01b9eed445c5b6
Reviewed-on: https://chromium-review.googlesource.com/322248
Commit-Ready: Kalin Stoyanov <kalin@chromium.org>
Tested-by: Kalin Stoyanov <kalin@chromium.org>
Reviewed-by: Shrawan Jha <shrawan@chromium.org>
1 file changed