Snap for 5626917 from 466e644462c7dfbb957776999e548d72ef0fc2fa to qt-aml-release

Change-Id: I1737aff0656813b509756f9701d146987be06cff
tree: 8f43b4b0eea63ec7fa2b609985c8c4874efcc000
  1. libbacktrace/
  2. libunwindstack/