ath9k_hw: Enable AR9340 support

AR9340 is a AR9003 family built-in 2x2 wmac of ar934x SOCs. It is single band
in ar9341 SOC and dual band in ar9344/ar9342 SOCs.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 66566ef..b7eb793 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -552,6 +552,7 @@
 	case AR_SREV_VERSION_9271:
 	case AR_SREV_VERSION_9300:
 	case AR_SREV_VERSION_9485:
+	case AR_SREV_VERSION_9340:
 		break;
 	default:
 		ath_err(common,
@@ -629,6 +630,7 @@
 	case AR2427_DEVID_PCIE:
 	case AR9300_DEVID_PCIE:
 	case AR9300_DEVID_AR9485_PCIE:
+	case AR9300_DEVID_AR9340:
 		break;
 	default:
 		if (common->bus_ops->ath_bus_type == ATH_USB)