[NET] Intel ethernet drivers: update MAINTAINERS

Unfortunately Jeb decided to move away from our group. We wish Jeb
good luck with his new group!

Reordered people a bit so most active team members are on top.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>