f7449e5 kernel: Add test for netlabel failure to remove all rules

Authored and Committed by omos 3 years ago
    kernel: Add test for netlabel failure to remove all rules
    
    Add coverage for:
    https://bugzilla.redhat.com/show_bug.cgi?id=1901174
    
    Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>