[M] Change in coreboot[master]: mb/lenovo/x200: Configure ck505 clockgen

[Arthur Heymans (Code Review)]

Attention is currently required from: Stefan Ott, Arthur Heymans, Alexander Couzens.

Hello Stefan Ott, build bot (Jenkins), Alexander Couzens,

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

https://review.coreboot.org/c/coreboot/+/74418

to look at the new patch set (#4).

Change subject: mb/lenovo/x200: Configure ck505 clockgen
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mb/lenovo/x200: Configure ck505 clockgen

The clockgen is behind an smbus mux which is implemented with a gpio.
This adds a callback inside the ck505 code to configure the mux.

The clockgen configuration values are taken from dumping the clockgen
with vendor firmware.

TESTED on x200 and x301: boots fine

Change-Id: Iec9bbbaed43b74e8782f6963e491dbfa3b8b5247
Signed-off-by: Arthur Heymans 
---
M src/drivers/i2c/ck505/ck505.c
A src/drivers/i2c/ck505/ck505.h
M src/mainboard/lenovo/x200/Kconfig
M src/mainboard/lenovo/x200/mainboard.c
M src/mainboard/lenovo/x200/variants/x200/overridetree.cb
M src/mainboard/lenovo/x200/variants/x301/overridetree.cb
6 files changed, 76 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/18/74418/4