Allow forced setting of TLS1.1 and TLS1.2 protocols with

Allow forced setting of TLS1.1 and TLS1.2 protocols with
the -f command-line switch, and adapt the output to more accurately
report what SSL/TLS protocol was negotiated (use SSL_get_version()
instead of SSL_CIPHER_get_version()).

PR: 53916

Backport of r1395225 from trunk  resp. r1400946 from 2.4.x

Submitted by: Nicolás Pernas Maradei <nico emutex com>
Reviewed/amended by: kbrand, covener, wrowe
Backported by: kbrand

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@1445104 13f79535-47bb-0310-9956-ffa450edef68