[L] Change in coreboot[main]: mb/prodrive/atlas: Add initial support for options

[Lean Sheng Tan (Code Review)]

Attention is currently required from: Lean Sheng Tan, Patrick Rudolph.

Lean Sheng Tan has uploaded a new patch set (#26) to the change originally created by Angel Pons. ( https://review.coreboot.org/c/coreboot/+/74122?usp=email )

Change subject: mb/prodrive/atlas: Add initial support for options
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mb/prodrive/atlas: Add initial support for options

The plan is to have a setup menu in edk2 to configure coreboot options
without having to describe the options in both coreboot and edk2; that
would be a maintenance nightmare. Options are passed to edk2 using CFR
structures, edk2 stores the values in the variable store in flash, and
coreboot reads the option values using the EFI variable store backend.

Change-Id: I47585a9a6f94ab5005f2ab63a0df267c0caef231
Signed-off-by: Angel Pons 
---
M src/mainboard/prodrive/atlas/Kconfig
M src/mainboard/prodrive/atlas/Makefile.mk
A src/mainboard/prodrive/atlas/cfr.c
M src/mainboard/prodrive/atlas/devicetree.cb
M src/mainboard/prodrive/atlas/ramstage_fsp_params.c
M src/mainboard/prodrive/atlas/romstage_fsp_params.c
6 files changed, 286 insertions(+), 10 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/22/74122/26