USB: move many drivers to use DEVICE_ATTR_WO

Instead of "open coding" a DEVICE_ATTR() define, use the DEVICE_ATTR_WO() macro instead, which does everything properly instead.

This does require a few static functions to be renamed to work properly, but thanks to a script from Joe Perches, this was easily done.

Reported-by Joe Perches <[email protected]>

Cc Peter Chen <[email protected]>

Cc Felipe Balbi <[email protected]>

Cc Johan Hovold <[email protected]>

Cc Valentina Manea <[email protected]>

Cc Shuah Khan <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 drivers/usb/chipidea/otg_fsm.c | 4 ++--
 drivers/usb/gadget/udc/core.c  | 8 ++++----
 drivers/usb/phy/phy-mv-usb.c   | 4 ++--
 drivers/usb/serial/ftdi_sio.c  | 4 ++--