[XS] Change in coreboot[master]: soc/intel/meteorlake: Add provision to show pre-boot splash screen

[Subrata Banik (Code Review)]

Attention is currently required from: Eran Mitrani, Jakub Czapiga, Kapil Porwal, Tarun Tuli.

Hello Eran Mitrani, Jakub Czapiga, Kapil Porwal, Tarun Tuli, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/76922?usp=email

to look at the new patch set (#4).

The following approvals got outdated and were removed:
Verified+1 by build bot (Jenkins)

Change subject: soc/intel/meteorlake: Add provision to show pre-boot splash screen
......................................................................

soc/intel/meteorlake: Add provision to show pre-boot splash screen

This patch adds the ability to show a pre-boot splash screen on
Meteor Lake systems using FSP-S.

The patch calls into `fsp_convert_bmp_to_gop_blt()` when the
`HAVE_FSP_LOGO_SUPPORT` config is enabled. This function converts a BMP
file to a BLT buffer, which is then used by FSP-S to render the splash
screen.

Additionally, increase the heap size (malloc'able size) upto 512KB
(when HAVE_FSP_LOGO_SUPPORT config is enabled) to accommodate high
resolution logo file.

BUG=b:284799726
TEST=Able to see pre-boot splash screen while booting google/rex.

Signed-off-by: Subrata Banik 
Change-Id: I3608bfacc21574e12cde0e2012a16e6388ce54df
---
M src/soc/intel/meteorlake/Kconfig
M src/soc/intel/meteorlake/fsp_params.c
2 files changed, 8 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/22/76922/4