test: add -no_rand_screen for tls-server-verify

This improves the performance of openssl s_client on Windows and
gains several seconds to finish test-tls-server-verify.

Fixes: https://github.com/nodejs/io.js/issues/1461
PR-URL: https://github.com/nodejs/io.js/pull/1836


Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>