MAINTAINERS: add fuzzing reviewer

To keep me cc-ed when something changes. Suggested by Alexander.

https://lists.gnu.org/archive/html/qemu-devel/2021-08/msg03631.html

Signed-off-by: Qiuhao Li <Qiuhao.Li@outlook.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 8b72509..590e1bc 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2712,6 +2712,7 @@
 R: Stefan Hajnoczi <stefanha@redhat.com>
 R: Thomas Huth <thuth@redhat.com>
 R: Darren Kenny <darren.kenny@oracle.com> 
+R: Qiuhao Li <Qiuhao.Li@outlook.com>
 S: Maintained
 F: tests/qtest/fuzz/
 F: tests/qtest/fuzz-*test.c