netdev: Update status of 8390 based drivers in MAINTAINERS

netdev: Update status of 8390 based drivers in MAINTAINERS

With the original 8 bit ISA ne1000 card being over 20 years old, it
only makes sense to consider ne.c and all the other toplevel 8390
based driver files as legacy for obsolete hardware.  The most
recent thing made in large quantities that was 8390 based were
those crazy PCI ne2k clones - and even they are now 10+ years old.

Also remove myself as maintainer, since the only changes to these
drivers going forward will be the generic API type changes that
touch all drivers.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>