Jeff was retired as the Intel driver maintainer in
commit 6667df91

 ("MAINTAINERS: Update MAINTAINERS for
Intel ethernet drivers"), and his address bounces.
But he has signed-off a lot of patches over the years
so get_maintainer insists on CCing him.

We haven't heard from him since he left Intel, so remapping
the address via mailmap is also pointless. Add to ignored
addresses.

Signed-off-by: Jakub Kicinski <[email protected]>
Acked-by: Tony Nguyen <[email protected]>
Signed-off-by: David S. Miller <[email protected]>