Merge "[SP01] Add NetworkStats to system API" am: 0104ecc3b8 am: 08ad8528d7

Change-Id: I771bf8836f9b754fc05fd743de8cc5a15aecddf1
tree: 4f78bb2a22e028669d17627fc43109f2d82f35be
  1. core/
  2. services/
  3. tests/