Re-introduce puppet-tripleo-core group

Creating new ACLs for puppet-tripleo project, so we can have a group of
cores dedicated to that repo, and include the tripleo-core group
maintainer of that project as well.

It'll allow the TripleO project to have finer gerrit permissions for
folks who are only core on puppet-tripleo.

Change-Id: Ib6dadc423a0b794bcf85b70add1eeae8974aad79

gerrit/acls/openstack/puppet-tripleo.config

@@ -0,0 +1,15 @@
+[access "refs/heads/*"]
+abandon = group puppet-tripleo-core
+abandon = group tripleo-core
+label-Code-Review = -2..+2 group puppet-tripleo-core
+label-Code-Review = -2..+2 group tripleo-core
+label-Verified = -1..+1 group tripleo-ci
+label-Workflow = -1..+1 group puppet-tripleo-core
+label-Workflow = -1..+1 group tripleo-core
+
+[receive]
+requireChangeId = true
+requireContributorAgreement = true
+
+[submit]
+mergeContent = true

gerrit/projects.yaml

@@ -4586,7 +4586,6 @@
   description: Lightweight composition layer for Puppet TripleO
   groups:
     - tripleo
-  acl-config: /home/gerrit2/acls/openstack/tripleo.config
 - project: openstack/puppet-trove
   description: OpenStack Trove Puppet Module
   acl-config: /home/gerrit2/acls/openstack/puppet-modules.config