Luke Huang c17821cc11 Add asynchronous DNS query API
Adds support for asynchronous "raw" DNS API for clients.
API allows apps to use multinetworking capability correctly
and also allows other query types than A/AAAA.

Test: built, flashed, booted
      cts test: NativeDnsAsyncTest

Change-Id: I4701b76bd8f0094ef1bdd7c5371b54387914a91b
2018-12-12 04:17:41 +08:00
..
2018-12-12 04:17:41 +08:00