usb: qcserial: add a number of Dell devices

Dan writes:

"The Dell drivers use the same configuration for PIDs:

81A2: Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card
81A3: Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card
81A4: Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card
81A8: Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card
81A9: Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card

These devices are all clearly Sierra devices, but are also definitely
Gobi-based.  The A8 might be the MC7700/7710 and A9 is likely a MC7750.

>From DellGobi5kSetup.exe from the Dell drivers:

usbif0: serial/firmware loader?
usbif2: nmea
usbif3: modem/ppp
usbif8: net/QMI"

Cc: <stable@vger.kernel.org>
Reported-by: AceLan Kao <acelan.kao@canonical.com>
Reported-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/serial/qcserial.c

@@ -151,6 +151,21 @@ static const struct usb_device_id id_table[] = {
 	{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 */
+	{USB_DEVICE_INTERFACE_NUMBER(0x413c, 0x81a2, 0)},	/* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card Device Management */
+	{USB_DEVICE_INTERFACE_NUMBER(0x413c, 0x81a2, 2)},	/* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card NMEA */
+	{USB_DEVICE_INTERFACE_NUMBER(0x413c, 0x81a2, 3)},	/* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card Modem */
+	{USB_DEVICE_INTERFACE_NUMBER(0x413c, 0x81a3, 0)},	/* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card Device Management */
+	{USB_DEVICE_INTERFACE_NUMBER(0x413c, 0x81a3, 2)},	/* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card NMEA */
+	{USB_DEVICE_INTERFACE_NUMBER(0x413c, 0x81a3, 3)},	/* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card Modem */
+	{USB_DEVICE_INTERFACE_NUMBER(0x413c, 0x81a4, 0)},	/* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card Device Management */
+	{USB_DEVICE_INTERFACE_NUMBER(0x413c, 0x81a4, 2)},	/* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card NMEA */
+	{USB_DEVICE_INTERFACE_NUMBER(0x413c, 0x81a4, 3)},	/* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card Modem */
+	{USB_DEVICE_INTERFACE_NUMBER(0x413c, 0x81a8, 0)},	/* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card Device Management */
+	{USB_DEVICE_INTERFACE_NUMBER(0x413c, 0x81a8, 2)},	/* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card NMEA */
+	{USB_DEVICE_INTERFACE_NUMBER(0x413c, 0x81a8, 3)},	/* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card Modem */
+	{USB_DEVICE_INTERFACE_NUMBER(0x413c, 0x81a9, 0)},	/* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card Device Management */
+	{USB_DEVICE_INTERFACE_NUMBER(0x413c, 0x81a9, 2)},	/* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card NMEA */
+	{USB_DEVICE_INTERFACE_NUMBER(0x413c, 0x81a9, 3)},	/* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card Modem */
 
 	{ }				/* Terminating entry */
 };