schedule tests for i386 by default
    
    Summary:
    D500 adds 32-bit test definitions to the test templates, so we
    can schedule that arch again.
    
    Test Plan: Goes along with D500, same test plan.
    
    Reviewers: jskladan, garretraziel
    
    Reviewed By: garretraziel
    
    Subscribers: tflink
    
    Differential Revision: https://phab.qadevel.cloud.fedoraproject.org/D501