Raise virtlockd and virtlogd max_client_requests
    
    Hypervisor cluster nodes repeatedly report the following:
    
    ```
    (virtlockd|virtlogd): Client hit max requests limit 1. This may result
    in keep-alive timeouts. Consider tuning the max_client_requests server
    parameter
    ```
    
    Hence following the suggestion.
    
    Signed-off-by: Georg Pfuetzenreuter <mail@georg-pfuetzenreuter.net>