dm9601: bring datasheet URL up to date

Signed-off-by: NWu Fengguang <fengguang.wu@intel.com>
Signed-off-by: NPeter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/usb/dm9601.c

@@ -23,7 +23,7 @@
 #include <linux/usb/usbnet.h>
 
 /* datasheet:
- http://www.davicom.com.tw/big5/download/Data%20Sheet/DM9601-DS-P01-930914.pdf
+ http://ptm2.cc.utu.fi/ftp/network/cards/DM9601/From_NET/DM9601-DS-P01-930914.pdf
 */
 
 /* control requests */