Originally variants make use of a 32MB chip whereas now they
use a 16MB SPI flash. Allow for the coordination of dealing
with the transition between phases.
V.2: Leave Puff alone at the moment due to the complexity of
coordination.
BUG=b:153682192
BRANCH=none
TEST=none
Change-Id: Ic336168ea1a0055c30f718f5540209d2cf69d029
Signed-off-by: Edward O'Callaghan <quasisec@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40897
Reviewed-by: Sam McNally <sammc@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
64e15aac1b