purism/librem_bdl: Convert to variant setup

Convert the purism/librem13v1 to a variant setup, in
preparation for adding the librem15v2 board as a new variant.
The Librem 13 v1 and Librem 15 v2 are nearly identical, so
this minimizes new code to add support for the latter.

Also update the URL in board_info to an archive.org link.

Change-Id: I00bb82b9e895e2464ddaa92915c01ce0e35933a2
Signed-off-by: Youness Alaoui <youness.alaoui@puri.sm>
Reviewed-on: https://review.coreboot.org/26183
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

0 files changed, 0 insertions, 0 deletions