qlge: Clean up mac address and frame route settings.

Setting MAC addresses and routing frames to various queues will need to
be done in response to firmware events as well as during initialization.
This change encapsulates the facilities into a single call that can
later me made from other places.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>