3com: make 3c59x depend on HAS_IOPORT

The 3com driver for 3c59x requires ioport_map. Since not all
architectures support IO port mapping make 3c59x dependent on HAS_IOPORT.
Signed-off-by: NJan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/3com/Kconfig

@@ -80,7 +80,7 @@ config PCMCIA_3C589
 
 config VORTEX
 	tristate "3c590/3c900 series (592/595/597) \"Vortex/Boomerang\" support"
-	depends on (PCI || EISA)
+	depends on (PCI || EISA) && HAS_IOPORT
 	select NET_CORE
 	select MII
 	---help---