[PATCH] Serial: Mobility's 16550A ports need a helping hand

The Mobility 16550A serial ports don't behave the same as standard
16550A ports, and need a helping hand to get them going once the
transmitter has drained and been disabled.

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

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

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