OS X requires to unmount the player during bootloader installation on Sansas / Ipods. The system remounts the player automatically after a short while.
Not waiting for the system to remount the player will result in a changed mount point, making the small / full install write the main build to the wrong
location.
This currently waits up to 60 seconds for the player to get remounted until it errors out. This value seems to be sufficient, if it's not please report
so we can adjust it. Also, the waiting can't be interrupted right now.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23716 a1c6a512-1295-4272-9138-f99709370657
