[M] Change in coreboot[main]: payloads/iPXE: Add an option for reproducible building

[Filip Lewiński (Code Review)]

Attention is currently required from: Filip Lewiński, Martin L Roth, Michał Kopeć, Michał Żygowski, Paul Menzel.

Hello Krystian Hebel, Martin L Roth, Michał Kopeć, Michał Żygowski, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/82039?usp=email

to look at the new patch set (#6).

The following approvals got outdated and were removed: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

Change subject: payloads/iPXE: Add an option for reproducible building
......................................................................

payloads/iPXE: Add an option for reproducible building

Allows to set a custom 32 bit hex build_id option for an iPXE build.
Useful for reproducibility.

Change-Id: I926b096e77a9d45ba2beecd1fc2b7d0a9b9a7b9c
Signed-off-by: Krystian Hebel 
---
M 3rdparty/arm-trusted-firmware
M 3rdparty/libgfxinit
A build.sh
M payloads/external/Makefile.mk
M payloads/external/iPXE/Kconfig
M payloads/external/iPXE/Makefile
6 files changed, 93 insertions(+), 4 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/39/82039/6