Move WebRTC test in to its own suite and add it to suite_scheduler.

WebRTC is being moved in to its own suite so we can confiugure email
notifications for these failures to go to their specific mailing address
without any other extra data being sent along.

TEST=site_utils/suite_enumerator.py -a . -l |grep WebRTC
site_utils/suite_enumerator.py -a . WebRTC # make sure the test is there.
site_utils/suite_scheduler/suite_scheduler.py --sanity
BUG=chromium-os:35496

Change-Id: I8adbdded4fae3985d2b1f5026e410e393c088e9d
Reviewed-on: https://gerrit.chromium.org/gerrit/41819
Tested-by: Scott Zawalski <scottz@chromium.org>
Reviewed-by: Aviv Keshet <akeshet@chromium.org>
Reviewed-by: Scott Zawalski <scottz@chromium.org>
Commit-Queue: Scott Zawalski <scottz@chromium.org>
3 files changed