Add fingerprint for bug 1271962

At the time of this commit only one job failed with this
signature. However, this is likely related to bug 1272509, and so
think this should be tracked for now.

Related-Bug: 1272509
Related-Bug: 1271962

Change-Id: Idd299d55e48e0148b571691ac4f70a88529347e5
Merge "Add fingerprint for bug 1271962"