serial: pch_uart: remove reference to .set_wake()
serial: pch_uart: remove reference to .set_wake()

This callback is gone and not coming back, so will not be
supported later.

Cc: Johan Hovold <6a430eed381e126d51a8cce8db662f765ce314bc@gmail.com>
Acked-by: Darren Hart <38f9eaa30910c40b06f5a60020b1222f2a953801@linux.intel.com>
Signed-off-by: Linus Walleij <9cd9d802d23c0ed5e224beabf4ae4a5c478746ef@linaro.org>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs