Traverse LS1043 boards are set up with a dual-system layout, rootfs{1,2} and kernel{1,2}.
nand_do_upgrade can do the image replacement work we were doing before as long as we give it the partition names.
This greatly simplifies the /lib/upgrade/platform.sh.
Signed-off-by: Mathew McBride <matt@traverse.com.au>
6a2705a52f