Increase WSGI process count to 5 on 64bit
    
    Increase the WSGI daemon worker process count from 2 processes to 5
    processes. This allows IPA RPC to handle more parallel requests. The
    additional processes increase memory consumption by approximante 250 MB
    in total.
    
    Since memory is scarce on 32bit platforms, only 64bit platforms are
    bumped to 5 workers.
    
    Fixes: https://pagure.io/freeipa/issue/7587
    Signed-off-by: Christian Heimes <cheimes@redhat.com>
    Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>