Add submit requirement for Code-Review in All-Projects

Change-Id: Ie30fa4186bff5ca4248c94e3e087da3ece469405

project.config

diff --git a/project.config b/project.config
index 82c4cb5..cfbd965 100644
--- a/project.config
+++ b/project.config
@@ -145,3 +145,8 @@
 	email = ^.*@google.com$
 	project = ^(?!(All-Projects)).*$
 	skipViaPushOption = true
+[submit-requirement "Code-Review"]
+        description = At least one maximum vote for label 'Code-Review' is required
+        submittableIf = label:Code-Review=MAX,user=non_uploader AND -label:Code-Review=MIN
+        overrideIf = label:Bot-Commit=+1
+        canOverrideInChildProjects = true