1. Test that android_res_nresult closes the fd.
2. Use "0" instead of ResNsendFlags(0) since
the type of flags is changed.
Test: build
atest CtsNativeNetDnsTestCases
Change-Id: I772fb3f70f52b84802bb352215a1639efeab1629
This is a following commit for cts of asynchronous DNS query API.
Change test path and adjust for the API changing.
Test: build
atest CtsNativeNetDnsTestCases
Change-Id: I7bc20a4d61293fc1d9e330250455709982639330