Add OWNERS for toolchain/benchmark

Test: None
Change-Id: I6a702a7009dd554b50ccc6e2b70f911b28b70365
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..1f77c59
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1,8 @@
+Default maintainers and code reviewers:
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
+# mailing list cannot be a reviewer yet
+# [email protected]