pcnet_cs: fix mii init code for older DL10019 based cards

Some older DL10019 based cards need to setup
the auto-negotiation-advertisement register
to advertise 100Full,100Half,10Full and 10Half.

Signed-off-by:  <komurojun-mbn@nifty.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>