allow mdb/gerritcodereview-eng to send suggested config changes

They are going to help us convert from Prolog to the new system.

Change-Id: I2799a9fbb30c21c6da7f0430b0f7383dc8992ab2
diff --git a/groups b/groups
index 257c6a4..6b6e2ef 100644
--- a/groups
+++ b/groups
@@ -15,5 +15,6 @@
 ldap:employees                                                	ldap/employees
 ldap:interns                                                  	ldap/interns
 mdb:copybara-git-readers                                      	mdb/copybara-git-readers
+mdb:gerritcodereview-eng                                      	mdb/gerritcodereview-eng
 mdb:golang-gob-eng-policy                                     	mdb/golang-gob-eng-policy
 mdb:golang-gob-owners                                         	mdb/golang-gob-owners
diff --git a/project.config b/project.config
index 074cfe8..257727e 100644
--- a/project.config
+++ b/project.config
@@ -33,7 +33,7 @@
 	label-Run-TryBot = +0..+1 group may-start-trybots
 	editHashtags = group approvers
 	editHashtags = group gobot
-	labelAs-TryBot-Result = group trybot-result-changers
+	labelAs-TryBot-Result = -1..-1 group trybot-result-changers
 	label-TryBot-Result = -1..+1 group gobot
 	label-Auto-Submit = +0..+1 group release-managers
 	removeReviewer = group approvers
@@ -104,6 +104,7 @@
 	forgeCommitter = group release-managers
 	push = +force group release-managers
 [access "refs/for/refs/meta/config"]
+	push = group mdb/gerritcodereview-eng
 	push = group mdb/golang-gob-eng-policy
 [accounts]
 	sameGroupVisibility = deny group google/google-union:signcla