Bug Fix for na_elementsw_backup.py (Default argument spec wasn't given) (#52378)

* Revert "changes to clusteR"

This reverts commit 33ee1b71e4bc8435fb315762a871f8c4cb6c5f80.

* Revert "Revert "changes to clusteR""

This reverts commit f1104a37b4.

* bug fix

* Fix exception

lib/ansible/modules/storage/netapp/na_elementsw_backup.py

@@ -136,7 +136,8 @@ class ElementSWBackup(object):
         """
             Setup Ansible parameters and SolidFire connection
         """
-        self.argument_spec = {}
+        self.argument_spec = netapp_utils.ontap_sf_host_argument_spec()
+
         self.argument_spec.update(dict(
 
             src_hostname=dict(aliases=['hostname'], required=True, type='str'),