usb: support usb 3.1 (SuperSpeedPlus) and usb 3.2 (SuperSpeedPlus_x2) addressing and display for xhci.

[aokblast]

Summary

Currently, we only support default PSI id implemented xHCI. For other
xhci, we fallback to 3.0. Note that the total bandwidth of the device
is not so much impacted since all of the setup is done by xHCI
hardware id is compatbile for old xHCI driver.

This driver fix the addressing issue for SSP hub behind a SSP hub and
makes the usb driver detect the speed correctly.

[imp]

lib/libusb/libusb20_ugen20.c

210

All the lib changes you could do in one commit.

sys/dev/rtwn/rtl8812a/usb/r12au_attach.c

81

You can do this as a separate change, maybe combined with others that just do similar things.

sys/dev/usb/storage/umass.c

2362

These should have their own transfer speeds, I think.

sys/dev/usb/template/usb_template.c

598

2**10 == 1024

602

2**11 is 2048

sys/dev/usb/usb.h

814

You can roll this into the enum... And I'd be tempted to commit just the extra enums first by itself, since that lets you do many slivers of the change on their own as well.

830

Same comment.

sys/dev/usb/usb_hub.c

829

why this change?

[lwhsu]

lib/libusb/libusb01.c

135

[lwhsu]

sys/dev/usb/controller/xhci.c

135

544

546

sys/dev/usb/template/usb_template.c

597

601

sys/dev/usb/usb.h

412

usb_devcap_ss_plus_descriptor ?

usr.sbin/usbdump/usbdump.c

165

Do we also need to add USB_SPEED_SUPER_PLUS_X2 ?