Adds support for using Cumulus switches with NGS

Support for NCLU was added in Networking Generic Switch in the Zed
release[1].

Support for NVUE was added in Networking Generic Switch in the
2023.2 release[2].

[1] https://review.opendev.org/c/openstack/networking-generic-switch/+/743269
[2] https://review.opendev.org/c/openstack/networking-generic-switch/+/907551

Closes-Bug: #2083840

Change-Id: I973c6484ccd2a36990cf39df102e65be0376f08c

ansible/kolla-openstack.yml

@@ -65,6 +65,8 @@
       dell-powerconnect: netmiko_dell_powerconnect
       junos: netmiko_juniper
       openvswitch: netmiko_ovs_linux
+      nclu: netmiko_cumulus
+      nvue: netmiko_cumulus_nvue
     ipa_image_name: "ipa"
   pre_tasks:
     - block:

releasenotes/notes/cumulus-support-ngs-c4a6e6f3d45f5783.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    Adds support for using Cumulus switches (NCLU and NVUE) with Networking
+    Generic Switch.