Add v2 two-node scenario test

This patch adds a dual Octavia controller, two compute instance, scenario
gate job for both Python 3 and 2.

Depends-On: https://review.openstack.org/621677
Change-Id: Ibbe35aee947b7287eab42c292b8c8bf350e06806
diff --git a/zuul.d/projects.yaml b/zuul.d/projects.yaml
index ad0a080..94aa8c1 100644
--- a/zuul.d/projects.yaml
+++ b/zuul.d/projects.yaml
@@ -19,6 +19,10 @@
             voting: false
         - octavia-v2-dsvm-scenario-ubuntu-bionic:
             voting: false
+        - octavia-v2-dsvm-scenario-two-node:
+            voting: false
+        - octavia-v2-dsvm-py2-scenario-two-node:
+            voting: false
     gate:
       queue: octavia
       jobs: