am 3d1d57dc: Merge "Collect and persist tethering stats." into ics-factoryrom

* commit '3d1d57dcdb02ace6af5810bd4ec3f8fad5fc1799':
  Collect and persist tethering stats.
tree: 458695cd6208399ab71bcec5269bae4f9e4e6d33
  1. core/
  2. services/