usb: net: introduce support for Moschip USB ethernet

introduce an 'mcs7830' driver for Moschip MCS7830 based (7730/7830/7832)
USB 2.0 Ethernet Devices

see "MCS7830 -- USB 2.0 to 10/100M Fast Ethernet Controller" at
http://www.asix.com.tw/products.php?op=pItemdetail&PItemID=109;74;109

the driver was implemented based on the U-Boot Asix driver with
additional information gathered from the Moschip Linux driver,
development was done on "Delock 61147" and "Logilink UA0025C" dongles

Signed-off-by: Gerhard Sittig <gsi@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
diff --git a/include/usb_ether.h b/include/usb_ether.h
index 011ead7..35700a2 100644
--- a/include/usb_ether.h
+++ b/include/usb_ether.h
@@ -49,6 +49,12 @@
 int asix_eth_get_info(struct usb_device *dev, struct ueth_data *ss,
 		      struct eth_device *eth);
 
+void mcs7830_eth_before_probe(void);
+int mcs7830_eth_probe(struct usb_device *dev, unsigned int ifnum,
+		      struct ueth_data *ss);
+int mcs7830_eth_get_info(struct usb_device *dev, struct ueth_data *ss,
+			 struct eth_device *eth);
+
 void smsc95xx_eth_before_probe(void);
 int smsc95xx_eth_probe(struct usb_device *dev, unsigned int ifnum,
 			struct ueth_data *ss);