This commit adds a query for bug 1664793 to track the test_stamp_pattern
bug where it times out waiting for the device to show up in the guest.
49 hits all failures in check and experimental, but it's on all
different commits. Also from previous experience this is a real issue to
track.
Change-Id: I01cd6c046cac99a6926150f845e990b11f5edc14
Related-Bug: #1664793