3c509: Add missing EISA IDs

Several EISA device IDs for 3c509 family network cards are missing from 
the driver, making the cards unusable in their EISA mode.  Here's a fix to 
add them based on the EISA configuration files distributed by 3Com and our 
eisa.ids database.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>