Adapt I2C controller configuration for mc_ehl6 board. This involves
changes to the coreboot I2C setup. To prevent higher I2C speeds from
being used by the OS, dummy devices are installed on the I2C bus.
TEST=Check if drivers for the I2C devices started correctly during
coreboot execution and verify that all I2C devices are detected in the
OS.
Change-Id: I6de578f969456a15807a1380209ea18e01f522bd
Signed-off-by: Uwe Poeche <uwe.poeche@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/90083
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
864e3ca661