allow building images for multiple distros
- changing the distro or mirror can be done either via environment variable or via CLI option
- allow generating images for only a selected number of platforms via CLI arguments
- the default behaviour (no options) is unchanged
- update to u-boot 2023-10-10 and 2023-10-18
- firedecor is named reform-firedecor in unstable
- reform-tools 1.33
Edited by Johannes Schauer Marin Rodrigues