[S] Change in coreboot[master]: payloads/edk2: Add Kconfig to enable UEFI Secure Boot support

[Matt DeVillier (Code Review)]

Attention is currently required from: Martin L Roth, Matt DeVillier, Stefan Reinauer.

Hello build bot (Jenkins), Sean Rhodes, Martin L Roth, Paul Menzel, Stefan Reinauer,

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

https://review.coreboot.org/c/coreboot/+/74869

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

Change subject: payloads/edk2: Add Kconfig to enable UEFI Secure Boot support
......................................................................

payloads/edk2: Add Kconfig to enable UEFI Secure Boot support

Now that MrChromebox's default edk2 branch supports Secure Boot, add a
Kconfig to enable it, and do so by default when MrChromebox's branch
is used and SMMSTORE_V2 is enabled (which is a prerequisite).

TEST=build/boot google boards link, panther, lulu,reef, ampton, akemi,
and banshee, verify Secure Boot options available in payload, Secure Boot
status reported properly by Linux/Windows.

Change-Id: I4be58c3315cabe08729d717c59203fdc6a3e2958
Signed-off-by: Matt DeVillier 
---
M payloads/external/Makefile.inc
M payloads/external/edk2/Kconfig
M payloads/external/edk2/Makefile
3 files changed, 31 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/69/74869/3