Add more cts test case for corner cases.
Test: build
atest CtsNativeNetDnsTestCases
Change-Id: I8891a4cb40ee788f001a8c2ccf52f2a9574bbd3c
Add more cts test case for corner cases.
Test: build
atest CtsNativeNetDnsTestCases
Change-Id: I8891a4cb40ee788f001a8c2ccf52f2a9574bbd3c