ath9k: set MAC version for AR9550

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.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 10a55bc..773efe4 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -342,6 +342,9 @@
 		val = REG_READ(ah, AR_SREV);
 		ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
 		return;
+	case AR9300_DEVID_QCA955X:
+		ah->hw_version.macVersion = AR_SREV_VERSION_9550;
+		return;
 	}
 
 	val = REG_READ(ah, AR_SREV) & AR_SREV_ID;