List the openssl functions as extension functions for lint

Summary:
sry 2 hear of ur lint trubles

(You may need to `arc liberate --force` or delete all your `src/.phutil_module_cache` after updating, see T1486.)

Test Plan: shrug shrug

Reviewers: btrahan, vrana

Reviewed By: btrahan

CC: aran

Differential Revision: https://secure.phabricator.com/D5583