Log Message:
Restore SSL functionnality with OpenSSL 1.0.1p

With OpenSSL 1.0.1p upgrade, DH parameters below 1024 bits are now
refused. mariaDB 5.5.43 hardcodes 512 bits DH parameters and will
therefore fail to run SSL connexions with OpenSSL 1.0.1p

Port fix from mysql:
https://github.com/mysql/mysql-server/commit/866b988a76e8e7e217017a7883a52a12ec5024b9