Change in edk2[coreboot-stable202108]: UefiPayloadPkg: Add build option to disable Above 4G Decode

[Matt DeVillier (Code Review)]

Hello build bot (Jenkins),

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

https://review.coreboot.org/c/edk2/+/58801

to look at the new patch set (#3).

Change subject: UefiPayloadPkg: Add build option to disable Above 4G Decode
......................................................................

UefiPayloadPkg: Add build option to disable Above 4G Decode

Add build option `ABOVE_4G_MEMORY`, which when disabled, will dispatch
everything under 4GB. This allows Operating System's that require
EFI_LOADED_IMAGE to be under 4GB to start.

e.g. Xen hypervisor used in Qubes

Dovetails with coreboot commit 766e481a:
"payloads/external/tianocore: Add build argument for 4G Decode"

Signed-off-by: Sean Rhodes 
Change-Id: I50e9d9052b344519f46419a01b27b2ca43047943
---
M UefiPayloadPkg/UefiPayloadEntry/UefiPayloadEntry.c
M UefiPayloadPkg/UefiPayloadEntry/UefiPayloadEntry.inf
M UefiPayloadPkg/UefiPayloadPkg.dec
M UefiPayloadPkg/UefiPayloadPkg.dsc
4 files changed, 52 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/edk2 refs/changes/01/58801/3