gresolve: Fix a typo in conditional check for returning results

gresolve: Fix a typo in conditional check for returning results

In both parse_response and query_timeout there exists logic that checks
to ensure that both an A and AAAA lookups have either been responded to
or timed out before processing and returning results to the caller. In
query_timeout, there was a typo in the condition check such that it did
not match those conditions tested in parse_response.