mv643xx_eth: Define module alias for platform device

The mv643xx_eth driver can be loaded as a platform device, as is done by
various Orion (ARM) based devices.  The driver needs to define a module
alias for the platform driver so udev will load it automatically.
Tested with Debian on a QNAP TS-209.
Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/net/mv643xx_eth.c

@@ -2104,6 +2104,7 @@ MODULE_LICENSE("GPL");
 MODULE_AUTHOR(	"Rabeeh Khoury, Assaf Hoffman, Matthew Dharm, Manish Lachwani"
 		" and Dale Farnsworth");
 MODULE_DESCRIPTION("Ethernet driver for Marvell MV643XX");
+MODULE_ALIAS("platform:mv643xx_eth");
 
 /*
  * The second part is the low level driver of the gigE ethernet ports.