Don't align the MSDOS partition
Don't align the MSDOS partition

Previously, the AM335x ROM would not recognize the
FAT partition and not load the MLO.  (Symptom: repeated
'C' on the console when the ROM gives up on all disks
and tries to load a boot program from the serial port.)

With this change, I now get as far as loading U-Boot.

teverett/crochet-freebsd,freebsd/crochet,wheelcomplex/crochet-freebsd,HardenedBSD/crochet,HardenedBSD/crochet,dankm/crochet-freebsd,brd/crochet,wheelcomplex/crochet-freebsd,brd/crochet,dankm/crochet-freebsd,teverett/crochet-freebsd,wheelcomplex/crochet-freebsd,freebsd/crochet,brd/crochet