usbcore: rename struct dev_state to struct usb_dev_state

Since it is needed outside usbcore and exposed in include/linux/usb.h,
it conflicts with enum dev_state in rt2x00 wireless driver.

Mark it as usb specific to avoid conflicts in the future.

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/usbip/stub_dev.c
Simple merge

diff --cc drivers/usb/core/devio.c
Simple merge

diff --cc drivers/usb/core/hub.c
Simple merge

diff --cc drivers/usb/core/hub.h
Simple merge

diff --cc drivers/usb/core/usb.h
Simple merge

diff --cc include/linux/usb.h
Simple merge