soc/amd/cezanne: Add an option to enable A/B recovery scheme

Extracted from NDA spec #56995:
"The A/B recovery scheme formally separates the SPI flash space into
different partitions; a primary, “A” and secondary, “B”, which hold
the same set of system firmware. Under this scheme, the partitions A
and B can hold identical contents initially, but each partition can be
updated individually.

Normally the system boots from partition A, but if the A partition is
found to be corrupted, the system will switch to partition B and
boot. The OEM BIOS can then choose to continue the boot from partition
B, or repair partition A using contents from partition B."

The Cezanne platform supports both A/B recovery and no recovery
method. It needs this flag passed to amdfwtool to enable the A/B
recovery layout.

Change-Id: Id1c8028faee9c544628d65fd77be2a378ed7eab6
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84195
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

0 files changed, 0 insertions, 0 deletions