Rename iptables-based active-standby jobs

Rename jobs so that it does not conflict with amphora stats-based
active-standby jobs being added in
Ibcd5552a67cea650edc72bfaa986357267ca2407 and will become default
active-standby jobs from Rocky.

Change-Id: Ie61f42f0d5565455a766b321055f0b854820a865
diff --git a/zuul.d/projects.yaml b/zuul.d/projects.yaml
index af516d7..787dfb0 100644
--- a/zuul.d/projects.yaml
+++ b/zuul.d/projects.yaml
@@ -26,17 +26,17 @@
             voting: false
         - octavia-v2-dsvm-py2-scenario-two-node:
             voting: false
-        - octavia-v2-act-stdby-dsvm-scenario:
+        - octavia-v2-act-stdby-iptables-dsvm-scenario:
             voting: false
-        - octavia-v2-act-stdby-dsvm-py2-scenario:
+        - octavia-v2-act-stdby-iptables-dsvm-py2-scenario:
             voting: false
-        - octavia-v2-act-stdby-dsvm-py2-scenario-centos-7:
+        - octavia-v2-act-stdby-iptables-dsvm-py2-scenario-centos-7:
             voting: false
-        - octavia-v2-act-stdby-dsvm-scenario-stable-stein:
+        - octavia-v2-act-stdby-iptables-dsvm-scenario-stable-stein:
             voting: false
-        - octavia-v2-act-stdby-dsvm-py2-scenario-stable-rocky:
+        - octavia-v2-act-stdby-iptables-dsvm-py2-scenario-stable-rocky:
             voting: false
-        - octavia-v2-act-stdby-dsvm-py2-scenario-stable-queens:
+        - octavia-v2-act-stdby-iptables-dsvm-py2-scenario-stable-queens:
             voting: false
         - octavia-v2-dsvm-tls-barbican:
             voting: false