[M] Change in coreboot[main]: vc/google: Show different logos for different ChromeOS devices

[Subrata Banik (Code Review)]

Attention is currently required from: Andrey Petrov, Julius Werner, Ronak Kanabar, Shelley Chen, Subrata Banik.

Subrata Banik has uploaded a new patch set (#10) to the change originally created by Shelley Chen. ( https://review.coreboot.org/c/coreboot/+/79775?usp=email )

Change subject: vc/google: Show different logos for different ChromeOS devices
......................................................................

vc/google: Show different logos for different ChromeOS devices

This commit adds support for showing different logos on the ChromeOS
firmware splash screen based on the device model (between
Chromebook-Plus and regular ChromeOS devices like Chromebook and
Chromebox). This allows OEMs to customize the branding on their
devices.

This patch also introduces three new Kconfigs:
 - CHROMEOS_FW_SPLASH_SCREEN
 - CHROMEOS_LOGO_PATH
 - CHROMEBOOK_PLUS_LOGO_PATH
which allow users to enable the fw splash screen feature in the
vendorcode. Previously, we were using the BMP_LOGO Kconfig in
drivers/intel/fsp2_0, but we didn't want the top level Kconfigs to be
located inside the architecture specific files.

BUG=b:317880956
BRANCH=None
TEST=emerge-rex coreboot chromeos-bootimage
     verify that FW splash screen appears

Change-Id: I56613d1e7e81e25b31ad034edae0f716c94c4960
Signed-off-by: Shelley Chen 
---
M src/drivers/intel/fsp2_0/Makefile.inc
M src/include/bootsplash.h
M src/lib/Kconfig
M src/lib/bmp_logo.c
M src/vendorcode/google/chromeos/Kconfig
M src/vendorcode/google/chromeos/Makefile.inc
A src/vendorcode/google/chromeos/splash.c
7 files changed, 67 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/75/79775/10