Merge tag 'android-10.0.0_r4' into HEAD

Android 10.0.0 Release 4 (QP1A.191005.007)

* tag 'android-10.0.0_r4':
  Use language tags to store Configuration's locale list.
  Fix bootloop issue with UsageStatsService.
  Use mContext directly
  DO NOT MERGE: Fixed an issue where the notification icons wouldn't show while docked
  Fix regression in PFD#fromData

Change-Id: Ia615cb27ce9f4b05b5b66ab24cf832a69691f72a