[L] Change in coreboot[master]: libpayload/uhci: Re-write UHCI RH driver w/ generic_hub API

[Nico Huber (Code Review)]

Attention is currently required from: Paul Menzel.

Nico Huber has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/75504?usp=email )

Change subject: libpayload/uhci: Re-write UHCI RH driver w/ generic_hub API
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Patch Set 1:

(1 comment)

Commit Message:

https://review.coreboot.org/c/coreboot/+/75504/comment/4ff76f3c_33ab9912 :
PS1, Line 21:
> I tried that on Debian sid/unstable with […]

Ah, yes. The first patch that's already merged kind of fixes things for
devices that libpayload has an idea about (HID in case of usb-mouse).
This patch indirectly fixes things (last two points of the commit
message) for devices that libpayload would ignore (cf. CB:23687).

This should do (still fail w/ master):
```
$ make qemu QEMU_ARGS="-device usb-ccid,bus=ich9-ehci-1.0"
```