payloads/external/iPXE: Add more Kconfig options

Add two new options:
* Disable the prompt "Press Ctrl+B for the iPXE command line..."
Add a boolean that disables the initial 2 second timeout.

* Include a script that is executed instead of showing a shell.
Allows to add a script that will be included into the iPXE ROM.

Tested on Lenovo T500 and PC Engines apu2.

Change-Id: Ie1083d8571d9d1f1c7c71659fb6ff0de2eecad0e
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/20782
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

0 files changed, 0 insertions, 0 deletions