print.c: Move list of known boards to known_boards.c

This free's up namespace pollution and a layer of ifdef.

Change-Id: Id098343b9b79fd9b01c7dc48e64756ad350f9d83
Signed-off-by: Edward O'Callaghan <quasisec@google.com>
Original-Reviewed-on: https://review.coreboot.org/c/flashrom/+/66720
Original-Reviewed-by: Thomas Heijligen <src@posteo.de>
Reviewed-on: https://review.coreboot.org/c/flashrom-stable/+/72352
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
4 files changed