we provide an unlocked flash image, but also, of course, don't have
hardware black- or whitelists, and now even suggest to remove the restiction
on original batteries. In another sense, this "unlocks" the device.

Closes #15

We locally add Intel's new microcode package, currently under review
upstream here:

https://review.coreboot.org/#/c/blobs/+/23315/

Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>

Signed-off-by: Martin Kepplinger <martink@posteo.de>