[MS54.1] Move NetworkStats to updatable sources am: 63627bce56 am: bc9557b2b6

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1987467

Change-Id: I15d6e69d7fd18e1121f9900b6d87f4e97437ed7d
tree: 8627675a0d64f075606989c30ad1725ed142754d
  1. framework/
  2. framework-t/
  3. service-t/
  4. services/
  5. tests/