openssl: set the transfer pointer for logging early

Otherwise, the transfer will be NULL in the trace function when the
early handshake details arrive and then curl won't show them.

Regresssion in 7.75.0

Reported-by: David Hu
Fixes #6783
Closes #6792

lib/vtls/openssl.c

@@ -2588,6 +2588,7 @@ static CURLcode ossl_connect_step1(struct Curl_easy *data,
     /* the SSL trace callback is only used for verbose logging */
     SSL_CTX_set_msg_callback(backend->ctx, ossl_trace);
     SSL_CTX_set_msg_callback_arg(backend->ctx, conn);
+    set_logger(conn, data);
   }
 #endif