ath6kl: fix tx/rx antenna reporting for 2x2 devices

My previous patch incorrectly reported the antenna
for 2x2 devices. It should be a mask instead of
a numeric count. This patch fixes that.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index 81ac8c5..7f3f94f 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -3930,8 +3930,8 @@
 		ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff;
 		ath6kl_band_2ghz.ht_cap.mcs.rx_mask[1] = 0xff;
 		ath6kl_band_5ghz.ht_cap.mcs.rx_mask[1] = 0xff;
-		ar->hw.tx_ant = 2;
-		ar->hw.rx_ant = 2;
+		ar->hw.tx_ant = 0x3; /* mask, 2 antenna */
+		ar->hw.rx_ant = 0x3;
 	} else {
 		ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff;
 		ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff;