ath9k: Fix bug in initializing chain masks

Check for AR5416 ver 1.0 before calibrating 3 chains
for multi-chain. This is a WAR for calibration
failure.

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

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

@@ -1146,7 +1146,7 @@ static void ath9k_hw_init_chain_masks(struct ath_hw *ah)
 		REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
 			    AR_PHY_SWAP_ALT_CHAIN);
 	case 0x3:
-		if (((ah)->hw_version.macVersion <= AR_SREV_VERSION_9160)) {
+		if (ah->hw_version.macVersion == AR_SREV_REVISION_5416_10) {
 			REG_WRITE(ah, AR_PHY_RX_CHAINMASK, 0x7);
 			REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, 0x7);
 			break;