Fix some issues about re-scanning of the devices.
src/lib/libusb20/libusb20_ugen20.c
Fix issue about libusb20 having to release the
USB transfers before doing a SET_CONFIG, else
the kernel will kill the file handle.
src/sys/dev/usb2/core/usb2_device.
src/sys/dev/usb2/core/usb2_generic.c
src/sys/dev/usb2/core/usb2_generic.h
Add support for U3G devices.
Improve and cleanup FIFO free handling.
Improve device re-enumeration.
src/sys/dev/usb2/core/usb2_msctest.c
src/sys/dev/usb2/core/usb2_msctest.h
Fix some problems in the USB Mass Storage Test.
Add Huawei vendor specific quirks.
src/sys/dev/usb2/core/usb2_request.c
Improve device re-enumeration.
src/sys/dev/usb2/ethernet/if_aue2.c
src/sys/dev/usb2/include/usb2_devid.h
src/sys/dev/usb2/include/usb2_devtable.h
src/sys/dev/usb2/quirk/usb2_quirk.c
Integrate changes from the old USB driver.
src/sys/dev/usb2/include/usb2_standard.h
Add definition of USB3.0 structures from USB.org.
src/sys/dev/usb2/serial/u3g2.c
src/sys/dev/usb2/serial/ugensa2.c
src/sys/modules/usb2/Makefile
src/sys/modules/usb2/serial_3g/Makefile
Import U3G driver.
Submitted by: Hans Petter Selasky (usb4bsd)
b7b4347b86