[M] Change in coreboot[master]: ec/dell: Add support for the SMSC MEC5035

[Nicholas Chin (Code Review)]

Attention is currently required from: Paul Menzel, Felix Held, Elyes Haouas.

Hello build bot (Jenkins), Paul Menzel, Angel Pons,

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

https://review.coreboot.org/c/coreboot/+/59703

to look at the new patch set (#10).

Change subject: ec/dell: Add support for the SMSC MEC5035
......................................................................

ec/dell: Add support for the SMSC MEC5035

This is required to prevent the EC from shutting down the system after
about 15 seconds after being turned on. If the EC doesn't receive a
command meaning "CPU OK" it assumes that the processor has failed and
flashes a diagnostic code on the keyboard LEDs to indicate this.

This also enables the keyboard and trackpad/trackpoint interfaces.

Parts of this code were derived from yet-to-be merged code in CB:44975
(ec: Add support for MEC5055 for Dell laptops) written by Iru Cai.

Tested on a Dell Latitude E6400

Signed-off-by: Nicholas Chin 
Change-Id: Ia420cd51e9a64be5eee4af2c0d113618575522b0
---
A src/ec/dell/mec5035/Kconfig
A src/ec/dell/mec5035/Makefile.inc
A src/ec/dell/mec5035/mec5035.c
A src/ec/dell/mec5035/mec5035.h
4 files changed, 180 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/03/59703/10