Always check peer has keys before connecting
    
    When pulling the DM password we may have the same issues reported in
    ticket #6838 for CA keys.
    This commit makes sure we always check the peer has keys before any
    client operation.
    
    Ticket #6838
    
    Signed-off-by: Simo Sorce <simo@redhat.com>
    Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
    Reviewed-By: Michal Reznik <mreznik@redhat.com>