Add the NAT64 prefix to LinkProperties.

Currently we support exactly one NAT64 prefix. This matches what
other components in the system (Dns64Configuration, clatd, etc.)
support.

Test: atest FrameworksNetTests
Change-Id: I45a11cebe43a5e1c60d50eca7889cb317565b598
2 files changed
tree: c55ffeed7470a532330a5ff349a3276f048e5235
  1. core/
  2. services/
  3. tests/