[SERIAL] Don't use ASYNC_ constants with the uart_port structure

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --cc drivers/serial/21285.c
Simple merge

diff --cc drivers/serial/amba-pl010.c
Simple merge

diff --cc drivers/serial/clps711x.c
Simple merge

diff --cc drivers/serial/imx.c
Simple merge

diff --cc drivers/serial/sa1100.c
Simple merge

diff --cc drivers/serial/serial_lh7a40x.c
Simple merge

diff --cc drivers/serial/sh-sci.c
Simple merge

diff --cc drivers/serial/sunsu.c
Simple merge