[S] Change in coreboot[main]: soc/amd/genoa: Deal with memory map for 32M or larger flash

[Varshit Pandya (Code Review)]

Attention is currently required from: Arthur Heymans, Bao Zheng, Felix Held, Martin L Roth, Matt DeVillier, Varshit Pandya.

Varshit Pandya has uploaded a new patch set (#12) to the change originally created by Arthur Heymans. ( https://review.coreboot.org/c/coreboot/+/76499?usp=email )

Change subject: soc/amd/genoa: Deal with memory map for 32M or larger flash
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soc/amd/genoa: Deal with memory map for 32M or larger flash

Only the lower half of the flash gets memory mapped below 4G in the
current setup.

Signed-off-by: Arthur Heymans 
Signed-off-by: Varshit Pandya 
Change-Id: Iffe5c17a50f3254411a4847c7e635ce0fd282fde
---
M src/soc/amd/genoa/Kconfig
M src/soc/amd/genoa/Makefile.inc
A src/soc/amd/genoa/mmap_boot.c
3 files changed, 34 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/99/76499/12