try to fix different const qualifiers in openssl 1.0
try to fix different const qualifiers in openssl 1.0

git-svn-id: bcd6b86955ef202e70aa6c54fa81c3470d610618@15782 d0543943-73ff-0310-b7d9-9358b9ac24b2

BelledonneCommunications/sofia-sip,unispeech/sofia-sip,unispeech/sofia-sip,BelledonneCommunications/sofia-sip,xhook/sofia-sip,xhook/sofia-sip,unispeech/sofia-sip,BelledonneCommunications/sofia-sip,erdincay/sofia-sip,erdincay/sofia-sip,xhook/sofia-sip,jart/sofia-sip,BelledonneCommunications/sofia-sip,jart/sofia-sip,erdincay/sofia-sip,erdincay/sofia-sip,unispeech/sofia-sip,xhook/sofia-sip,jart/sofia-sip,xhook/sofia-sip