am d85ba0af: am f7049d0d: Merge "Check both TETHER_DUN_APN and TETHER_DUN_REQUIRED to decide DUN APN behavior." into lmp-mr1-dev

* commit 'd85ba0afd8ab28a4ad44739994cf6d6bc38ac244':
  Check both TETHER_DUN_APN and TETHER_DUN_REQUIRED to decide DUN APN behavior.