According to Documentation/serial/driver the shutdown function should
not disable RTS, so drop it.
Suggested-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>