Merge changes from topic 'cherry_pms_installd'

* changes:
  Release mPackages lock earlier
  OtaDexopt: Special-case system app classpaths
  OtaDexoptService: Run dexopt on all apps
  Frameworks/base: Add compiler stats to Package Manager
  [RFC] Special case system apps for profile optimizations
  Compile core-apps according to their own "reason" for A/B
  Frameworks/base: Add new flow to OtaDexoptService
  Otadexopt: Expose progress percentage
  cp preopted files from B partition during PM init.