For mainboards using the HP KBC1126 EC interface, but with a different
EC implementation, we don't put the EC firmware in the CBFS image. Add
a Kconfig option to prevent the build system warning on not inserting
the EC firmware.
After this change, building coreboot for EliteBook Folio 9480m will
not have a warning on not inserting the EC firmware.
The build system still builds a working coreboot image for EliteBook
2560p, and gives a warning if not choosing to insert the EC firmware.
Change-Id: I3be83a13d138d3623064ef2803f3e3a340207ead
Signed-off-by: Iru Cai <mytbk920423@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45575
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>