add ether82598 to the terminal configuration, because that's
how it's used.

Reference: /n/atom/patch/applied2013/nixterm82598
Date: Mon Aug 26 17:54:35 CES 2013
Signed-off-by: quanstro@quanstro.net

--- /sys/src/nix/k10/term	Mon Aug 26 17:54:23 2013
+++ /sys/src/nix/k10/term	Mon Aug 26 17:54:23 2013
@@ -56,7 +56,7 @@
 	ether82563	pci
 	etherbcm	pci ethermii
 	etherigbe	pci ethermii
-#	ether82598	pci
+	ether82598	pci
 #	etherm10g	pci
 	ethermedium
 #	loopbackmedium