MAINTAINERS: update Benchmark util: add git tree

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 4c05ff8..f9f2ace 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2531,6 +2531,7 @@
 M: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
 S: Maintained
 F: scripts/simplebench/
+T: git https://src.openvz.org/scm/~vsementsov/qemu.git simplebench
 
 Transactions helper
 M: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>