fuse: Update to 2.9.4

Change-Id: I0877c624531286f47da29a7ab16c7ff3cfac0090
diff --git a/fuse/include/ulockmgr.h b/fuse/include/ulockmgr.h
index ad55579..c3ceef5 100644
--- a/fuse/include/ulockmgr.h
+++ b/fuse/include/ulockmgr.h
@@ -6,6 +6,8 @@
   See the file COPYING.LIB.
 */
 
+#include "fuse_lowlevel.h"
+
 #include <stdint.h>
 #include <fcntl.h>
 #include <sys/types.h>