Mismatch dictionary key in the process of parsing XML

Should be:
'addr': child.get('version') -> 'addr': child.get('addr'),
in the _parse_network method of servers_client.py

Change-Id: Ida6cf5ce5b2b5b89b5fadb7705798fe44a913a33
Closes-Bug: #1214198
Merge "Mismatch dictionary key in the process of parsing XML"