USB: add another sierra wireless device id

As reported by Peter Kucmeroski and Jason Ganovsky.

Cc: Peter Kucmeroski <PKucmeroski@novell.com>
Cc: Jason Ganovsky <JGanovsky@novell.com>
Cc: Kevin Lloyd <klloyd@sierrawireless.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index ea16572..69cc8fb 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -35,6 +35,7 @@
 	{ USB_DEVICE(0x1199, 0x0020) },	/* Sierra Wireless MC5725 */
 	{ USB_DEVICE(0x1199, 0x0017) },	/* Sierra Wireless EM5625 */
 	{ USB_DEVICE(0x1199, 0x0019) },	/* Sierra Wireless AirCard 595 */
+	{ USB_DEVICE(0x1199, 0x0218) },	/* Sierra Wireless MC5720 */
 	{ USB_DEVICE(0x1199, 0x6802) },	/* Sierra Wireless MC8755 */
 	{ USB_DEVICE(0x1199, 0x6803) },	/* Sierra Wireless MC8765 */
 	{ USB_DEVICE(0x1199, 0x6804) },	/* Sierra Wireless MC8755 for Europe */
@@ -58,6 +59,7 @@
 	{ USB_DEVICE(0x1199, 0x0020) },	/* Sierra Wireless MC5725 */
 	{ USB_DEVICE(0x1199, 0x0017) },	/* Sierra Wireless EM5625 */
 	{ USB_DEVICE(0x1199, 0x0019) },	/* Sierra Wireless AirCard 595 */
+	{ USB_DEVICE(0x1199, 0x0218) },	/* Sierra Wireless MC5720 */
 	{ USB_DEVICE(0x1199, 0x6802) },	/* Sierra Wireless MC8755 */
 	{ USB_DEVICE(0x1199, 0x6803) },	/* Sierra Wireless MC8765 */
 	{ USB_DEVICE(0x1199, 0x6812) },	/* Sierra Wireless MC8775 */