Add the #networking-sfc channel

Channel #networking-sfc had already been created and registered in
Freenode but not added to project-config. This adds the channel to
the accessbot and gerritbot lists, with gerritbot listening to the
openstack/networking-sfc gerrit stream.

Change-Id: Iae8507666484e6f078ab4173bec457cc7ebecd23

accessbot/channels.yaml

@@ -73,6 +73,7 @@ channels:
     mask: full_mask
   - name: murano
     mask: full_mask
+  - name: networking-sfc
   - name: openstack
   - name: openstack-101
   - name: openstack-ailuropoda

gerritbot/channels.yaml

@@ -232,6 +232,16 @@ murano:
   branches:
     - master
 
+networking-sfc:
+  events:
+    - patchset-created
+    - change-merged
+    - x-vrif-minus-2
+  projects:
+    - openstack/networking-sfc
+  branches:
+    - master
+
 openstack-ailuropoda:
   events:
     - patchset-created