[L] Change in coreboot[main]: mb/lenovo: Add ThinkCentre M920q (Coffee Lake)

[Maciej Pijanowski (Code Review)]

Attention is currently required from: Alexander Couzens, Angel Pons, Felix Singer, Michał Kopeć, Paul Menzel.

Hello Alexander Couzens, Angel Pons, Felix Singer, Michał Kopeć, Paul Menzel, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/80609?usp=email

to look at the new patch set (#13).

Change subject: mb/lenovo: Add ThinkCentre M920q (Coffee Lake)
......................................................................

mb/lenovo: Add ThinkCentre M920q (Coffee Lake)

It may come with 8th or 9th Gen CPUs. i5-8500T has been tested here.

Works:
- Serial adapter from daughter board (COM1 connector)
- USB ports front and back
- USB-C port (charging, data)
- HDMI
- Ethernet
- SATA
- NVMe
- internal speaker
- TPM2.0
- PCIe x8 port (x8 riser tested, x4 not)

Does not work:
- front audio jacks

Change-Id: Iea1dc5745c0ecf687fa18b793f0aab4b0855d6d4
Signed-off-by: Maciej Pijanowski 
---
M Documentation/mainboard/index.md
A Documentation/mainboard/lenovo/m920q.md
A src/mainboard/lenovo/m920q/Kconfig
A src/mainboard/lenovo/m920q/Kconfig.name
A src/mainboard/lenovo/m920q/Makefile.mk
A src/mainboard/lenovo/m920q/acpi/ec.asl
A src/mainboard/lenovo/m920q/acpi/mainboard.asl
A src/mainboard/lenovo/m920q/acpi/superio.asl
A src/mainboard/lenovo/m920q/board_info.txt
A src/mainboard/lenovo/m920q/bootblock.c
A src/mainboard/lenovo/m920q/cmos.default
A src/mainboard/lenovo/m920q/cmos.layout
A src/mainboard/lenovo/m920q/data.vbt
A src/mainboard/lenovo/m920q/devicetree.cb
A src/mainboard/lenovo/m920q/dsdt.asl
A src/mainboard/lenovo/m920q/gma-mainboard.ads
A src/mainboard/lenovo/m920q/gpio.c
A src/mainboard/lenovo/m920q/hda_verb.c
A src/mainboard/lenovo/m920q/include/mainboard/gpio.h
A src/mainboard/lenovo/m920q/ramstage.c
A src/mainboard/lenovo/m920q/romstage.c
21 files changed, 841 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/09/80609/13