firmware-utils: mkmerakifw-old: Add le32 support
mkmerakifw-old was created for the z1 which uses the AR9344 SoC with
be32 addressing. The MX64/MX65 devices use the same header style, however
these boards use a BCM NSP SoC with le32 addressing.
Since we may be booting initramfs images with this header, which may be
of any size, within reason, board->imagelen is set to 0. The kernel
image shoule be limited in the image Makefile.
Signed-off-by: Matthew Hagan <mnhagan88@gmail.com>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>