Move Inet[4]AddressUtils to libs/net

The classes should not be picked up from frameworks/base, as they are
part of several mainline modules.

Bug: 151052811
Test: m; manual: flashed, wifi and telephony working
Test: atest CtsNetTestCasesLatestSdk:CaptivePortalApiTest
Change-Id: Ic7534afe3a437f2089ed33cebdad391dc498d187
1 file changed
tree: 4e5ec2ee852afd63530c4bed25a151377706e6a4
  1. tests/