net: asix: add support for the Billionton GUSB2AM-1G-B USB adapter

Just another AX88178-based 10/100/1000 USB-to-Ethernet dongle. This one
shows up in lsusb as: "ID 08dd:0114 Billionton Systems, Inc".

Signed-off-by: Chia-Sheng Chang <changchias@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Christoph Jaeger <cj@linux.com>
Cc: "Woojung.Huh@microchip.com" <Woojung.Huh@microchip.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Markus Elfring <elfring@users.sourceforge.net>
Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Cc: netdev@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index fbb9325..e66805e 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -164,6 +164,7 @@
 	    * Aten UC210T
 	    * ASIX AX88172
 	    * Billionton Systems, USB2AR
+	    * Billionton Systems, GUSB2AM-1G-B
 	    * Buffalo LUA-U2-KTX
 	    * Corega FEther USB2-TX
 	    * D-Link DUB-E100