Keep octavia disabled for now

This PR contains the legwork for enabling octavia and has been tested to
the point of a successful deploy, but enabling it in this PR is a higher
risk. It'd be better to stage tested octavia support and enable it
per-configuration one at a time.

examples/dt/uni06zeta/control-plane/service-values.yaml

@@ -64,7 +64,7 @@ data:
     enabled: true
 
   octavia:
-    enabled: true
+    enabled: false
     amphoraImageContainerImage: quay.io/gthiemonge/octavia-amphora-image
     apacheContainerImage: registry.redhat.io/ubi9/httpd-24:latest
     availabilityZones: