Change in coreboot[master]: mb/clevo/tgl-u: add new board L14xMU

[Michael Niewöhner (Code Review)]

Attention is currently required from: Felix Singer, Nico Huber, Michał Żygowski, Michał Kopeć, Paul Menzel, Angel Pons.
Michael Niewöhner has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/59548 )

Change subject: mb/clevo/tgl-u: add new board L14xMU
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Patch Set 17:

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/59548/comment/ed858f4f_648c1073 
PS16, Line 42:  - Debian testing, unstable (Linux 5.16.14, 5.17.0-rc6)
> It boots without any EC related errors?

yes

https://review.coreboot.org/c/coreboot/+/59548/comment/e88f7d03_f1ed17c8 
PS16, Line 56:  - WLAN/BT (PCIe) - gets detected but can't be enabled
> AFAIK this depends on EC too?

Done