Deleted pieces of code detect MBR-containig device as a FAT-type device,
if it's first partition contains a FAT filesystem. This behaviour enabled one
to mount the FAT FS which is either directly on the device (disk0) or on
the first partition (disk0.0) using the same command:
    mount /dev/disk0 /fat
However, the desired behaviour can be reached with a:
    mount /dev/disk0 /fat || mount /dev/disk0.0 /fat || echo "Mounting failed"

Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>