Merge "[MS59.3] Expose NetworkStatsDataMigrationUtils" am: 8de5088578 am: e156948ba1

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1961599

Change-Id: I3def078e37095635f65425922ba4d55ad1b4f6fe
tree: 63bf13bbfb0a6d42c8af2a661c51f029b26d5cb6
  1. framework/
  2. framework-t/
  3. service-t/
  4. services/
  5. tests/