Fix issue in netconf plugin dispatch for junos and iosxr (#57981)

*  If case xml reply is transformed or namespace is removed in ncclient
   device specific handler return modified xml response as string

*  If data xml node is present in xml response return the xml string
   with data node as root node

*  If none above is true return raw xml string received from host
   with rpc-reply as the root node

lib/ansible/plugins/netconf/__init__.py

@@ -29,7 +29,7 @@ from ansible.module_utils.basic import missing_required_lib
 
 try:
     from ncclient.operations import RPCError
-    from ncclient.xml_ import to_xml, to_ele
+    from ncclient.xml_ import to_xml, to_ele, NCElement
     HAS_NCCLIENT = True
     NCCLIENT_IMP_ERR = None
 except (ImportError, AttributeError) as err:  # paramiko and gssapi are incompatible and raise AttributeError not ImportError
@@ -225,7 +225,20 @@ class NetconfBase(AnsiblePlugin):
             raise ValueError('rpc_command value must be provided')
 
         resp = self.m.dispatch(fromstring(rpc_command), source=source, filter=filter)
-        return resp.data_xml if hasattr(resp, 'data_xml') else resp.xml
+
+        if isinstance(resp, NCElement):
+            # In case xml reply is transformed or namespace is removed in
+            # ncclient device specific handler return modified xml response
+            result = resp.data_xml
+        elif hasattr(resp, 'data_ele') and resp.data_ele:
+            # if data node is present in xml response return the xml string
+            # with data node as root
+            result = resp.data_xml
+        else:
+            # return raw xml string received from host with rpc-reply as the root node
+            result = resp.xml
+
+        return result
 
     @ensure_connected
     def lock(self, target="candidate"):