The flashrom and coreboot-utils packages are outdated and would need to be updated in the PureOS repository.
Flashrom is currently version 0.9.9 which doesn't support skylake machines, but version 1.0 was released earlier this year and it does support Skylake : https://www.flashrom.org/Flashrom/1.0

Coreboot-utils also might need a little update, more specifically what is immediately noticeable by users, the cbmem utility will show 'unknown' entries for the timestamps instead of showing that timestamp entry's name, and that's because it's new entries that didn't exist before. The coreboot-utils is from version 4.5, but Coreboot recently released their version 4.8.1 : https://www.coreboot.org/releases/