list_iface(): Skip ifaces in a bonding

BTW, I doubt that this function is in use really.
Should be considered to drop it later.

alterator-net-functions/alterator-net-functions

@@ -648,12 +648,14 @@ list_eth()
 	done
 }
 
+# Is this function really used anywhere?
 list_iface()
 {
     netdev_list|
 	while read iface; do
 	    [ "$iface" != "lo" ] || continue
 	    [ -z "$(netdev_find_bridge "$iface")" ] || continue
+	    [ -z "$(netdev_find_bond "$iface")" ] || continue
 	    local tf="/sys/class/net/$iface/type"
 	    [ ! -f "$tf" ] || [ "$(cat "$tf")" != 801 ] || continue
 	    echo "$iface" 2>/dev/null