Allow maintainers to review and submit permission changes

project.config

diff --git a/project.config b/project.config
index d3d7661..e8b46ba 100644
--- a/project.config
+++ b/project.config
@@ -21,3 +21,6 @@
 [access "refs/meta/config"]
 	push = group google/gerritcodereview-maintainers@googlegroups.com
 	read = group google/gerritcodereview-maintainers@googlegroups.com
+	label-Code-Review = -2..+2 group google/gerritcodereview-maintainers@googlegroups.com
+	label-Verified = -1..+1 group google/gerritcodereview-maintainers@googlegroups.com
+	submit = group google/gerritcodereview-maintainers@googlegroups.com