Move NetworkUtils used by NetworkStack

Depending on usage move into NetworkStackUtils or shared
Inet4AddressUtils.

Test: atest FrameworksNetTests NetworkStackTests
Bug: 112869080
Merged-In: Ie20dcee375b377236004a7689890729493aca857
Change-Id: Ib8d000529872796022706a35050fdc2c7141f2ab
7 files changed
tree: 5446127b7d9634158c75c57a2ef987d6f9fff07b
  1. src/
  2. tests/
  3. Android.bp
  4. AndroidManifest.xml