Add fingerprint for bug 1291694

Bug cropped up 2 days ago after a tempest patch landed. So using the new
tempest test as part of the fingerprint since not sure if the issue is
in tempest or neutron.

Change-Id: Icd47ab2f7e900ad1dc28228473bf4b198445e281
Related-Bug: #1291694
Merge "Add fingerprint for bug 1291694"