cfg80211: add a field for the bitrate of the last rx data packet from a station

Also fix a typo in the STATION_INFO_TX_BITRATE description

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 821ffb9..3002218 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -1243,6 +1243,8 @@
  * @NL80211_STA_INFO_LLID: the station's mesh LLID
  * @NL80211_STA_INFO_PLID: the station's mesh PLID
  * @NL80211_STA_INFO_PLINK_STATE: peer link state for the station
+ * @NL80211_STA_INFO_RX_BITRATE: last unicast data frame rx rate, nested
+ *	attribute, like NL80211_STA_INFO_TX_BITRATE.
  * @__NL80211_STA_INFO_AFTER_LAST: internal
  * @NL80211_STA_INFO_MAX: highest possible station info attribute
  */
@@ -1261,6 +1263,7 @@
 	NL80211_STA_INFO_TX_RETRIES,
 	NL80211_STA_INFO_TX_FAILED,
 	NL80211_STA_INFO_SIGNAL_AVG,
+	NL80211_STA_INFO_RX_BITRATE,
 
 	/* keep last */
 	__NL80211_STA_INFO_AFTER_LAST,