Get mod_tls to compile/work better on Windows.

PR:           7612
Submitted by: Bernhard Schrenk <b.schrenk@improx.com>
Reviewed by:  Jeff Trawick


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@88955 13f79535-47bb-0310-9956-ffa450edef68