ath9k_htc: fix rs_datalen conversation

For some reason it didn't coused obvious problems.
Signed-off-by: NOleksij Rempel <linux@rempel-privat.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/htc_drv_txrx.c

@@ -946,7 +946,7 @@ static inline void convert_htc_flag(struct ath_rx_status *rx_stats,
 static void rx_status_htc_to_ath(struct ath_rx_status *rx_stats,
 				 struct ath_htc_rx_status *rxstatus)
 {
-	rx_stats->rs_datalen	= rxstatus->rs_datalen;
+	rx_stats->rs_datalen	= be16_to_cpu(rxstatus->rs_datalen);
 	rx_stats->rs_status	= rxstatus->rs_status;
 	rx_stats->rs_phyerr	= rxstatus->rs_phyerr;
 	rx_stats->rs_rssi	= rxstatus->rs_rssi;