atomic: update lorax passed vars
    
    Similar to what we did in b28af80 on the f25 branch. Let's update
    the lorax passed vars. This is to match what is expected for [1].
    
    [1] https://pagure.io/fedora-lorax-templates/pull-request/18
    
    Signed-off-by: Dusty Mabe <dusty@dustymabe.com>