[Music][MMS][Bug-1037315] Audio .ogg and .3gpp mimetypes are shown as video files in SMS app

https://bugzilla.mozilla.org/show_bug.cgi?id=1037315

If the audio file received is shown as video/ogg and video/3gpp -> creating a blob and converting it to audio/ogg and audi/3gpp in music app -> so the attachment will be received from music will be shown correctly in SMS application
I think we better to add some comments here to let people know that, the .ogg and .3gp audio files have video mimetype but we force them to be audio mimetype, and explain why we are doing this for ux.