Merge "Move some constants from TrafficStatsConstants to NetworkStackConstants" am: 5c520a3650 am: 348a73f1f0

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1625861

Change-Id: Ideb5a5abbd074a8c905861e902977c442317fc02
tree: 91dfad752c89f16ae076ff243f19d35e80aad5f4
  1. core/
  2. framework/
  3. service/
  4. services/
  5. tests/
  6. OWNERS
  7. TEST_MAPPING