cfg80211/nl80211: fix kernel-doc

Add missing entries to nl80211.h and fix
the kernel-doc notation in cfg80211.h.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 778e533..76d5472 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -627,10 +627,10 @@
  * @llid: mesh local link id
  * @plid: mesh peer link id
  * @plink_state: mesh peer link state
- * @signal: the signal strength, type depends on the wiphy's signal_type
-	NOTE: For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
- * @signal_avg: avg signal strength, type depends on the wiphy's signal_type
-	NOTE: For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
+ * @signal: The signal strength, type depends on the wiphy's signal_type.
+ *	For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
+ * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
+ *	For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
  * @txrate: current unicast bitrate from this station
  * @rxrate: current unicast bitrate to this station
  * @rx_packets: packets received from this station