David Barbion authored May 30, 2023 and digitalLumberjack committed Jun 15, 2023

This commit modifies the script responsible of creating the image:
* boot.md5 is generated before the image if generated
* genimage.cfg of all boards is dynamically generated (list of files)

Special case for the Odroid XU4 where bl1 boot file would overlap
with bl2. genimage does not allow partition overlapping and will
stop with an error. The bl1 file is truncated to 15360 bytes as
recommended here https://lists.buildroot.org/pipermail/buildroot/2018-February/516384.html