serial: 8250_dw: Use ifdef with ACPI
authorHeikki Krogerus <heikki.krogerus@linux.intel.com>
Wed, 16 Jan 2013 12:08:15 +0000 (14:08 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 16 Jan 2013 15:36:10 +0000 (07:36 -0800)
There are no stubs for ACPI functions so the driver needs to
have this ifdef or it will not compile without ACPI.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/8250/8250_dw.c

Simple merge