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: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>