[PATCH v3 0/2] tools: mkimage: cleanups + allow to create legacy image with type flat_dt

Hello,

the first patch cleans up the error message output if struct image_type_params::set_header is set, the other adds support for creating legacy images with type flat_dt.

regards, Marc

Changes since v2: - renamed new image type to "fdt_legacy" (suggested by Sean Anderson) Changes since v1: - introduce new image type (suggested by Sean Anderson) instead of adding new cmd line parameter