usb: qcserial: add Netgear Aircard 340U

This device was mentioned in an OpenWRT forum.  Seems to have a "standard"
Sierra Wireless ifnumber to function layout:
 0: qcdm
 2: nmea
 3: modem
 8: qmi
 9: storage

Cc: <stable@vger.kernel.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/serial/qcserial.c

@@ -139,6 +139,9 @@ static const struct usb_device_id id_table[] = {
 	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 0)},	/* Sierra Wireless EM7700 Device Management */
 	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 2)},	/* Sierra Wireless EM7700 NMEA */
 	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 3)},	/* Sierra Wireless EM7700 Modem */
+	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9051, 0)},	/* Netgear AirCard 340U Device Management */
+	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9051, 2)},	/* Netgear AirCard 340U NMEA */
+	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9051, 3)},	/* Netgear AirCard 340U Modem */
 
 	{ }				/* Terminating entry */
 };