Currently wandboard uses a custom boot.scr.txt script
and custom image generation scripts, genimage.cfg and
post-build.sh.
Switch to using the more standard extlinux.conf solution
and remove the custom scripts in favor of the standard
board/freescale/common/imx/post-image.sh one.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
