feat(cluster-addon): Use IPAM mode Kubernetes (#204)

Cilium doesn't use the IP settings from `Cluster.spec.clusterNetwork`
because it has its own IPAM mode.
Since we currently don't need the extra features of Cilium, we'll set it
to Kubernetes mode.

Signed-off-by: Jan Schoone <[email protected]>

Author: jschoone

providers/openstack/scs/cluster-addon/values.yaml

@@ -52,3 +52,6 @@ openstack-cinder-csi:
 yawol-controller:
   yawolOSSecretName: cloud-config
   enabled: false
+cilium:
+  ipam:
+    mode: "kubernetes"