BUILD: ssl: guard SSL_CTX_set_msg_callback with SSL_CTRL_SET_MSG_CALLBACK macro

both SSL_CTX_set_msg_callback and SSL_CTRL_SET_MSG_CALLBACK defined since
ea262260469e49149cb10b25a87dfd6ad3fbb4ba, we can safely switch to that guard
instead of OpenSSL version

(cherry picked from commit 7ff7747a1750cc416c3731cf53858011e02dd546)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
1 file changed