OpenEmbedded "poky" with some sysmocom specific modifications. Mostly used only up to sysmocom release 201310, but the "pyro" branch is still used for 201705
The name of the config file was changed and so far
I was hesitant to upgrade the MLO. I think the change
in EEPROM applies to the MLO as well so we should
upgrade it. It has neither been build tested nor tested
on a device.