fix: enable acpi.ec_no_wakeup in Thinkpad T14 AMD Gen 6

[codingCoffee]

Description of changes

Add acpi.ec_no_wakeup=1 kernel param to stop the embedded controller from waking the system during s2idle. Fixes wake-on-plug for USB-C charger and peripheral hot-plug on ThinkPad T14 Gen 6 AMD.

This is the same fix required in Gen 5 of the Thinkpad T14 series.

Things done

• Tested the changes in your own NixOS Configuration
• Tested the changes end-to-end by using your fork of nixos-hardware and
  importing it via <nixos-hardware> or Flake input

[codingCoffee]

@Mic92 can you check out this PR, I've tested it and it works on my Thinkpad T14 Gen 6. It's very similar to this PR

[m00wl]

In the table in the README, you link to the old gen5 directory (lenovo/thinkpad/t14/amd/gen5).
In addition, there is also #1748. They seem to not need acpi.ec_no_wakeup=1 anymore.
I have access to a Gen6, can you tell me how to confirm that the parameter is needed?

[codingCoffee]

I too have a Gen 6, let me check and confirm as well but in case you want to check in the meantime here are the steps

• suspend your laptop
• plug in either a charging cable in a usb-c port or plugin in a device (mobile etc) into a usb c port
• the laptop should wakeup from suspend withot the kernel param

Maybe linux kernel 7.0.0 already solves this without the kernel param. I'll have to check