Add binder log output format test for DnsResolver

Add the checking of binder log output format in DnsResolver
binder test, which is extracting logs from "dumpsys netd" and
verifying the format after performing binder IPCs.

Since the log output might be different between R and S,
this test would accept both of them.

Bug: 172188290
Test: test-only change

Change-Id: I43a4715e93b30538438920d958c3e2c5cb977002