Use IDnsResolver instead of INetd for resolver related binder commands

migrate resolver related commands from INetd to IDnsResolver

Bug: 126141549
Test: atest FrameworksNetTests ConnectivityServiceTest Nat464XlatTest
      atest DnsManagerTest
Change-Id: I559c0c1304d53dde408c062e1a52e742595e7cbe
8 files changed
tree: 188e05012cce6d460ea9d9204ecc3141cf790c8a
  1. core/
  2. services/
  3. tests/