USB: Support for ELECOM LD-USB20 in pegasus

This patch is support LD-USB20 of the USB LAN device.
http://www2.elecom.co.jp/products/LD-USB20.html ( Japanese only )

I am using this device.
And, I confirmed work by using this patch.

Signed-off-by: Nobuhiro Iwamatsu <hemamu@t-base.ne.jp>
Acked-by: Petko Manolov <petkan@nucleusys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/net/pegasus.h

@@ -131,6 +131,7 @@ struct usb_eth_dev {
 #define	VENDOR_COREGA		0x07aa
 #define	VENDOR_DLINK		0x2001
 #define	VENDOR_ELCON		0x0db7
+#define	VENDOR_ELECOM		0x056e
 #define	VENDOR_ELSA		0x05cc
 #define	VENDOR_GIGABYTE		0x1044
 #define	VENDOR_HAWKING		0x0e66
@@ -233,6 +234,8 @@ PEGASUS_DEV( "D-Link DSB-650", VENDOR_DLINK, 0xabc1,
 		DEFAULT_GPIO_RESET )
 PEGASUS_DEV( "GOLDPFEIL USB Adapter", VENDOR_ELCON, 0x0002,
 		DEFAULT_GPIO_RESET | PEGASUS_II | HAS_HOME_PNA )
+PEGASUS_DEV( "ELECOM USB Ethernet LD-USB20", VENDOR_ELECOM,  0x4010,
+		DEFAULT_GPIO_RESET  | PEGASUS_II )
 PEGASUS_DEV( "EasiDock Ethernet", VENDOR_MOBILITY, 0x0304,
 		DEFAULT_GPIO_RESET )
 PEGASUS_DEV( "Elsa Micolink USB2Ethernet", VENDOR_ELSA, 0x3000,