USB: serial: option: ZTEAC8710 Support with Device ID 0xffff

PATCH TO EXTEND SUPPORT TO AC8710 WITH 0xFFFF Product ID.

Signed-off-by: Mahesh Kuruganti <maheshkuruganti@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index a7f24f2..99e116c 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -305,6 +305,7 @@
 #define ZTE_PRODUCT_CDMA_TECH			0xfffe
 #define ZTE_PRODUCT_AC8710			0xfff1
 #define ZTE_PRODUCT_AC2726			0xfff5
+#define ZTE_PRODUCT_AC8710T			0xffff
 
 /* ZTE PRODUCTS -- alternate vendor ID */
 #define ZTE_VENDOR_ID2				0x1d6b
@@ -683,6 +684,7 @@
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_AC8710, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_AC2726, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_AC8710T, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE(ZTE_VENDOR_ID2, ZTE_PRODUCT_MF_330) },
 	{ USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_H10) },
 	{ USB_DEVICE(DLINK_VENDOR_ID, DLINK_PRODUCT_DWM_652) },