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

[Angel Pons (Code Review)]

Attention is currently required from: Alexander Couzens, Maciej Pijanowski, Paul Menzel.

Angel Pons has posted comments on this change by Maciej Pijanowski. ( https://review.coreboot.org/c/coreboot/+/80609?usp=email )

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

Patch Set 7:

(2 comments)

File src/mainboard/lenovo/m920q/devicetree.cb:

https://review.coreboot.org/c/coreboot/+/80609/comment/0f6fa08d_f37118c1?usp... :
PS7, Line 53: 				[0] = 1,
For M920Q M.2 SATA:

```suggestion
    			[0] = 1,
    			[4] = 1,
```

File src/mainboard/lenovo/m920q/gpio.c:

https://review.coreboot.org/c/coreboot/+/80609/comment/4309297f_30eb51cf?usp... :
PS7, Line 6: /* Pad configuration was generated automatically using intelp2m utility */
Please tell intelp2m to generate the pretty macros (it's a command-line argument)