shared-mime-info: Incorporate upstream fix for mp3 files missidentified
    
    Upstream has a fix based on an observation/work done by me to determine
    that many MP3 files do not play in Fedora due to being incorrectly
    recognized as Designer files. This happens because those files contain
    a header provided by Amazon and others including the "
    
    Signed-off-by: Jon Masters <jcm@jonmasters.org>