ath9k: Fix RX Filter handling for BAR

BAR frames have to be sent to mac80211 only if the
current channel is HT. Also, move the macro to
enum ath9k_rx_filter.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index 52e62da..ec0abf8 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -423,6 +423,9 @@
 	if (sc->rx.rxfilter & FIF_PSPOLL)
 		rfilt |= ATH9K_RX_FILTER_PSPOLL;
 
+	if (conf_is_ht(&sc->hw->conf))
+		rfilt |= ATH9K_RX_FILTER_COMP_BAR;
+
 	if (sc->sec_wiphy || (sc->rx.rxfilter & FIF_OTHER_BSS)) {
 		/* TODO: only needed if more than one BSSID is in use in
 		 * station/adhoc mode */