[coreboot-gerrit] Change in coreboot[master]: mb/google/volteer: Update flashmap descriptor to add ME_RW_A/B region

[Jamie Ryu (Code Review)]

Hello build bot (Jenkins), Jamie Ryu,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/46431

to look at the new patch set (#5).

Change subject: mb/google/volteer: Update flashmap descriptor to add ME_RW_A/B region
......................................................................

mb/google/volteer: Update flashmap descriptor to add ME_RW_A/B region

The current CSE firmware update implementation adds CSE RW binary to
FW_MAIN_A/B and this increases the boot time due to the size increase
of these regions leading to higher loading and hashing time.

To mitigate this issue, CSE RW binary is moved from FW_MAIN_A/B to new
region, ME_RW_A/B under RW_SECTON_A/B, and this updates the flashmap to
add ME_RW_A/B region for CSE RW binary.

BUG=b:169077783
TEST=build with cse rw binary and verify volteer boot time is close
to 1 sec.

Signed-off-by: Jamie Ryu 
Change-Id: I87da3824933ed2dd8e8ed0fed8686d2a3527faea
---
M src/mainboard/google/volteer/chromeos.fmd
1 file changed, 6 insertions(+), 4 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/31/46431/5