serial: pch_uart: remove unnecessary tty_port_tty_get
serial: pch_uart: remove unnecessary tty_port_tty_get

Remove unused tty-reference from dma-rx path which was left after the
recent tty-port conversions.

Also remove a redundant port initialisation while at it.

Signed-off-by: Johan Hovold <6a430eed381e126d51a8cce8db662f765ce314bc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

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