fix non ssl changes missed from context api change

http://libwebsockets.org/trac/ticket/11#comment:5

Reported-by: amn
Signed-off-by: Andy Green <andy.green@linaro.org>
diff --git a/lib/libwebsockets.c b/lib/libwebsockets.c
index 74d5561..241703a 100644
--- a/lib/libwebsockets.c
+++ b/lib/libwebsockets.c
@@ -1756,8 +1756,8 @@
 			lwsl_notice(" Using non-SSL mode\n");
 
 #else
-		if (ssl_cert_filepath != NULL &&
-					     ssl_private_key_filepath != NULL) {
+		if (info->ssl_cert_filepath != NULL &&
+				       info->ssl_private_key_filepath != NULL) {
 			lwsl_notice(" Not compiled for OpenSSl support!\n");
 			goto bail;
 		}