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]>