cs_network_offering: Add choice list for supported_services in arg_spec (#53901)

changelogs/fragments/53899-cs_network_offering-supported_services_choices.yml

@@ -0,0 +1,2 @@
+bugfixes:
+  - cs_network_offering - Add a choice list for supported_services parameter in arg_spec.

lib/ansible/modules/cloud/cloudstack/cs_network_offering.py

@@ -345,7 +345,17 @@ def main():
         display_text=dict(),
         guest_ip_type=dict(choices=['Shared', 'Isolated']),
         name=dict(required=True),
-        supported_services=dict(type='list', aliases=['supported_service']),
+        supported_services=dict(type='list', aliases=['supported_service'], choices=[
+            'Dns',
+            'PortForwarding',
+            'Dhcp',
+            'SourceNat',
+            'UserData',
+            'Firewall',
+            'StaticNat',
+            'Vpn',
+            'Lb',
+        ]),
         traffic_type=dict(default='Guest'),
         availability=dict(),
         conserve_mode=dict(type='bool'),