Change in coreboot[master]: ec/google/chromeec: Provide EC access for Retimer firmware upgrade

[John Zhao (Code Review)]

Attention is currently required from: Duncan Laurie.
Hello build bot (Jenkins), Duncan Laurie, Tim Wawrzynczak,

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

https://review.coreboot.org/c/coreboot/+/52713

to look at the new patch set (#6).

Change subject: ec/google/chromeec: Provide EC access for Retimer firmware upgrade
......................................................................

ec/google/chromeec: Provide EC access for Retimer firmware upgrade

coreboot needs to access EC RFWU entry in order to suspend and resume PD
and modes setting. This change adds ec_retimer_fw_update implementation
for Retimer firmware upgrade.

BUG=b:186521258
TEST=Build image successfully.

Signed-off-by: John Zhao 
Change-Id: Ib937d8bd72fc39487854773573b435bf2add672a
---
M src/ec/google/chromeec/ec_acpi.c
1 file changed, 13 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/13/52713/6