Nomad MuVo mp3 player patch (please test)

[Nate Lawson]

Please see the following PR if you have this device.  The submitter's
died.  If you have it, add the patch at the bottom of the email and test
it.  If it doesn't work, uncomment the NO_SYNC_CACHE and try again.

  http://www.freebsd.org/cgi/query-pr.cgi?pr=53094

Thanks,
Nate