Change in coreboot[master]: drivers/intel/usb4: Add Type-C port device attachment check

[Tim Wawrzynczak (Code Review)]

Attention is currently required from: Name of user not set #1002003, John Zhao, Paul Menzel, Rajmohan Mani.
Tim Wawrzynczak has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/63848 )

Change subject: drivers/intel/usb4: Add Type-C port device attachment check
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Patch Set 8: Code-Review+1

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/63848/comment/fd8bf7d2_bb769d33 
PS6, Line 18: Type-C ports under DA successfully.
> Sorry, I did not test. […]

The point is the behavior was erroneous before when there was a device attached (DA), but worked OK in no device attached (NDA)

File src/drivers/intel/usb4/retimer/retimer.c:

https://review.coreboot.org/c/coreboot/+/63848/comment/6c332de5_6f7216f1 
PS8, Line 71: acpigen_disable_tx_gpio(power_gpio);
> This GPIO was disabled on line 40 while EC reports error. […]

Ack. This right here is the Device Attached scenario, where it returns an error?