Add a flavor to the load balancer CRUD scenarios

This patch adds flavor configuration to the load balancer CRUD
scenario tests. It also updates the multinode jobs to use a
flavor configured for the active/standby topology.

Change-Id: I46c442df698f7da5bf48c404b06039477382852c
diff --git a/zuul.d/projects.yaml b/zuul.d/projects.yaml
index 2bb813e..490d68b 100644
--- a/zuul.d/projects.yaml
+++ b/zuul.d/projects.yaml
@@ -22,9 +22,9 @@
             voting: false
         - octavia-v2-dsvm-scenario-ubuntu-bionic:
             voting: false
-        - octavia-v2-dsvm-scenario-two-node:
+        - octavia-v2-act-stdby-dsvm-scenario-two-node:
             voting: false
-        - octavia-v2-dsvm-py2-scenario-two-node:
+        - octavia-v2-act-stdby-dsvm-py2-scenario-two-node:
             voting: false
         - octavia-v2-act-stdby-iptables-dsvm-scenario:
             voting: false