usb(4): Quirk for non-compliant USB devices.

Some non-compliant USB devices do not implement the
clear endpoint halt feature. Silently ignore such
failures, when they at least responded correctly
passing up a valid STALL PID packet.

Tested by: Doug Ambrisko <ambrisko@ambrisko.com>
MFC after: 1 week
Sponsored by: NVIDIA Networking