Don't perform ABI comparison when package doesn't ship devel/header
    
    Don't perform ABI comparison when there is no header/devel package
    shipped with package. We consider that if there is no header/devel
    package is shipped then package doesn't export any public ABI.
    
    This will help to get rid of some false positives ABI changes
    See https://pagure.io/task-abicheck/issue/8#comment-502435
    
    Signed-off-by: Sinny Kumari <sinny@redhat.com>