Merge "Split NetworkUtils and NetworkUtilsInternal" am: 7adf0e84b8

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1513140

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Iaa5503f829077f70803e2e865f58c6e4691d1a73
tree: 210fdb9adca70640e99965bd045a8189f56bf4a4
  1. core/
  2. services/
  3. wifi/