board/MynaPlayer odyssey: bump kernel to 5.11.

board/MynaPlayer odyssey: migrate rauc configuration to handle separate boot partitions and erofs rootfs.

board/MynaPlayer odyssey: increase the maximum size for a downloaded rauc bundle in raucs' configuration.

board/MynaPlayer odyssey: remove older system0.boot and system1.boot files from barebox bootchooser.

board/MynaPlayer odyssey: modify genimage template to use separate boot and rootfs.

board/MynaPlayer odyssey: replace barebox bootchooser's system0.boot and system1.boot with system0 and system1, calling the boot scripts.

board/MynaPlayer odyssey: added two boot scripts in the barebox environment, used to boot the appropriate rootfs with its intended boot partition.

board/MynaPlayer odyssey: set overlayfs partition to p7 in pre-init script.

board/MynaPlayer odyssey: create ext4 filesystem for kernel files to use in initial disk image.

board/MynaPlayer odyssey: create a tarball from the well known location for kernel files.

board/MynaPlayer odyssey: copy kernel files and boot specs to a well known location in post-image script.

board/MynaPlayer odyssey: remove boot specs from rootfs overlay.

board/MynaPlayer odyssey: provide boot specs outside of the rootfs overlay so they can be stored in another partition.

board/MynaPlayer odyssey: disable rootfs tarball creation.

board/MynaPlayer odyssey: disable squashfs rootfs creation.

board/MynaPlayer odyssey: disable ext4 rootfs creation.

board/MynaPlayer odyssey: do not install kernel images in /boot.

board/MynaPlayer odyssey: build an erofs rootfs.

board/MynaPlayer odyssey: enable erofs filesystem support in kernel.

board/MynaPlayer odyssey: remove non-generic barebox config.

board/MynaPlayer odyssey: switch to the generic stm32mp barebox config.

global: added a generic barebox config for stm32mp. ...

This defconfig is based on the one upstream, and builds all known stm32mp based boards.

It is up to each board configuration to pick the image they require, but this allows using a single defconfig for all of them.

board/MynaPlayer odyssey: use the version stamp file instead of directly calling git describe in post-image. ...

This is saner, as it allows the build to function properly even outside the external tree (i.e: if make is running from the top level buildroot directory, and not inside the external tree, with an out of tree build).

board/MynaPlayer odyssey: copy the version stamp file into the target.

global: add structure for version stamping. ...

This commit adds a script, version_stamp.sh which gets executed from external.mk's world target. It uses git describe --broken --dirty and outputs this to the global utilities directory, as version_stamp.

The output file is also added to gitignore, so the result cannot be committed accidentally.

It is up to each board config and scripts to do whatever they wish with this output.

board/MynaPlayer odyssey: tweak pre-init script. ...

This is required so that the overlayfs partition is changed to p5 instead of p6, since the rauc partition was removed.

board/MynaPlayer odyssey: add dt-utils patch to change lock file directory.

Revert "board/MynaPlayer odyssey: make genimage compress the disk image." ...

This reverts commit 16fa874.

board/MynaPlayer odyssey: remove rauc partition from genimage, and reworked the overlay filesystem creation. ...

The rauc partition was not needed seeing we make use of a large overlay filesystem. Remove it.

The fstab is now an empty file, so we avoid the original buildroot one.

The rauc-marking-good.service now runs mkdir -p to create the /rauc directory before it marks the slot good.

Also, the post-image script was modified to no longer create filesystems using fallocate. This was honestly dirty and added one more dependency in building MynaPlayer.

Genimage now takes care of creating the overlay filesystem instead.

board/MynaPlayer odyssey: make genimage compress the disk image. ...

Genimage will now compress the disk image after generating it.

By default, it compress in xz format, with extreme, keep and number of threads set to 0 for automatic usage.