batman-adv: Document new nc, mcast and tpmeter log levels

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>

Documentation/networking/batman-adv.txt

@@ -161,13 +161,16 @@ file in debugfs
 The additional debug output is by default disabled. It can be en-
 abled  during run time. Following log_levels are defined:
 
-0 - All  debug  output  disabled
-1 - Enable messages related to routing / flooding / broadcasting
-2 - Enable messages related to route added / changed / deleted
-4 - Enable messages related to translation table operations
-8 - Enable messages related to bridge loop avoidance
-16 - Enable messaged related to DAT, ARP snooping and parsing
-31 - Enable all messages
+  0 - All  debug  output  disabled
+  1 - Enable messages related to routing / flooding / broadcasting
+  2 - Enable messages related to route added / changed / deleted
+  4 - Enable messages related to translation table operations
+  8 - Enable messages related to bridge loop avoidance
+ 16 - Enable messages related to DAT, ARP snooping and parsing
+ 32 - Enable messages related to network coding
+ 64 - Enable messages related to multicast
+128 - Enable messages related to throughput meter
+255 - Enable all messages
 
 The debug output can be changed at runtime  using  the  file
 /sys/class/net/bat0/mesh/log_level. e.g.