smsc75xx: configuration help incorrectly mentions smsc95xx

The Kconfig file help information incorrectly mentions that the
SMSC LAN75xx config option is for SMSC LAN95xx devices.

Signed-off-by: Robert de Vries <rhdv@xs4all.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index 3b6e9b8..7c769d8 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -268,7 +268,7 @@
 	select CRC16
 	select CRC32
 	help
-	  This option adds support for SMSC LAN95XX based USB 2.0
+	  This option adds support for SMSC LAN75XX based USB 2.0
 	  Gigabit Ethernet adapters.
 
 config USB_NET_SMSC95XX