Change in coreboot[master]: Fizz: Get OEM ID and SKU ID from EC

[Daisuke Nojiri (Code Review)]

Daisuke Nojiri has uploaded a new patch set (#2). ( https://review.coreboot.org/23548 )

Change subject: Fizz: Get OEM ID and SKU ID from EC
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Fizz: Get OEM ID and SKU ID from EC

This patch makes coreboot fetch OEM ID and SKU ID from EC. If it fails,
it falls back to GPIO pins.

Devices with an invalid or uninitialized EEPROM will keep reading from
GPIOs because EC_CMD_GET_CROS_BOARD_INFO returns error.

BUG=b:70294260
BRANCH=none
TEST=Verify AP log shows expected OEM ID and SKU ID on Fizz.

Change-Id: I06d3a205275b46660b3974bc3673d4be8e13f6d1
Signed-off-by: Daisuke Nojiri 
---
M src/ec/google/chromeec/ec.c
M src/ec/google/chromeec/ec.h
M src/ec/google/chromeec/ec_commands.h
M src/mainboard/google/fizz/mainboard.c
4 files changed, 145 insertions(+), 14 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/48/23548/2