IR: Add option to re-initialize U-Boot env vars after updating U-Boot #89
Description
This could also be expanded to, for example, write arbitrary U-Boot env vars each time via a script. e.g. something like IR_UBOOT_VARS where each line is interpreted as a pair of args for fw_setenv
This would also require fw_setenv/printenv support for each platform. Which is not trivial to implement for Image Replicator, but it shouldn't be very difficult.