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

[John Zhao (Code Review)]

Attention is currently required from: Name of user not set #1002003, Tim Wawrzynczak, Paul Menzel, John Zhao, Rajmohan Mani.
John Zhao 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 9:

(3 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/63848/comment/6485c9f2_a8818cbe 
PS6, Line 10: This change adds support to query
            : devices attachment.
> The existing code has the flow as Coreboot sends query command to EC and polls status while EC proce […]

Done

https://review.coreboot.org/c/coreboot/+/63848/comment/aafa15f6_d8bcd5d9 
PS6, Line 18: Type-C ports under DA successfully.
> The point is the behavior was erroneous before when there was a device attached (DA), but worked OK  […]

Done

Patchset:

PS3:
> We have got no regression result for Retimer FW update. […]

The test results show no regression for Retimer FW update under NDA and successful TBT3 docks enumeration under DA.