Readd accessbot and gerritbot for #rdo on OFTC

The folks who registered #rdo on OFTC have added master access for
our opendevaccess accessbot account, so we can add that channel back
to our configuration now.

This partially reverts commit 68c091e744.

Change-Id: Iafdfe7d8e8e81efc4e6f1377d15ee2c3e1d7668d

accessbot/channels.yaml

@@ -207,6 +207,7 @@ channels:
   - name: openstack-zaqar
   - name: openstack-zun
   - name: osism
+  - name: rdo
   - name: refstack
   - name: senlin
   - name: solum

gerritbot/channels.yaml

@@ -1618,6 +1618,16 @@ osism:
   branches:
     - ^stable/.*
 
+rdo:
+  events:
+    - patchset-created
+    - change-merged
+  projects:
+    - x/packstack
+  branches:
+    - master
+    - ^stable/.*
+
 refstack:
   events:
     - patchset-created