Create a different target for tast tests that run on devices.

There's a bot up that's running the tast test suite on kevin devices:
https://luci-milo.appspot.com/p/chromium/builders/luci.chromium.ci/chromeos-kevin-rel-hw-tests

A few of them are perma-failing. This creates a new target which has them
disabled.

Bug: 866062
Change-Id: Ia715a164ae96bfbc2ee54d85482a25cdc216de96
Reviewed-on: https://chromium-review.googlesource.com/c/1382508
Commit-Queue: Ben Pastene <bpastene@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Reviewed-by: Dan Erat <derat@chromium.org>
Reviewed-by: Achuith Bhandarkar <achuith@chromium.org>
Cr-Commit-Position: refs/heads/master@{#618044}
8 files changed