Add Rfc6724 style sort for DnsResolver and fix potential bug

1. pass default network explicitly to fix potential
   mis-sync network problem in DnsResolver#query
2. Add rfc6724 sort and related test
3. DnsResolver do rfc6724 sort before response InetAddress answers
4. move haveIpv* function from DnsResolver to DnsUtils

Bug: 129530368
Test: atest DnsResolverTest DnsUtilsTest

Merged-In: I0323f5c7f32fc3fa589b9e87f8e7c9caf744dbd4
(cherry picked from commit d352f4ca)

Change-Id: I98455045fa43cc5a5902a08232251c1734feaac3