ath9k_htc: Enable RX STBC for AR9271

Signed-off-by: NSujith <Sujith.Manoharan@atheros.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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

@@ -407,6 +407,8 @@ static void setup_ht_cap(struct ath9k_htc_priv *priv,
 	if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_SGI_20)
 		ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
 
+	ht_info->cap |= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
+
 	ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
 	ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;