e09457d DNSSEC test: fix adding zones with --skip-overlap-check

Authored and Committed by mbasti 8 years ago
    DNSSEC test: fix adding zones with --skip-overlap-check
    
    In DNSSEC tests the root zone has to be created, this requires to use
    --skip-overlap-check to work properly.
    
    Reviewed-By: Martin Babinsky <mbabinsk@redhat.com>