[PATCH] Serial: Eliminate magic numbers

Use the existing macros instead.

Signed-off-by: Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --cc drivers/serial/8250.c
Simple merge

diff --cc drivers/serial/au1x00_uart.c
Simple merge

diff --cc drivers/serial/m32r_sio.c
Simple merge

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