test: fix parallel/test-dgram-error-message-address

The test expects EADDRNOTAVAIL when trying to bind to address 111::1.
Systems that have IPv6 disabled throw EAFNOSUPPORT instead, however.
Update the test accordingly.

PR-URL: https://github.com/iojs/io.js/pull/575


Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Fedor Indutny <fedor@indutny.com>