ath9k: Fix bug in checking HT flag

The operating HT mode is stored in chanmode and
not channelFlags.

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

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

@@ -883,7 +883,7 @@ bool ath9k_hw_calibrate(struct ath_hw *ah, struct ath9k_channel *chan,
 static bool ar9285_clc(struct ath_hw *ah, struct ath9k_channel *chan)
 {
 	REG_SET_BIT(ah, AR_PHY_CL_CAL_CTL, AR_PHY_CL_CAL_ENABLE);
-	if (chan->channelFlags & CHANNEL_HT20) {
+	if (IS_CHAN_HT20(chan)) {
 		REG_SET_BIT(ah, AR_PHY_CL_CAL_CTL, AR_PHY_PARALLEL_CAL_ENABLE);
 		REG_SET_BIT(ah, AR_PHY_TURBO, AR_PHY_FC_DYN2040_EN);
 		REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL,