ath9k_hw: Disable MRC CCK for AR9485

Signed-off-by: NVasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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

@@ -358,7 +358,7 @@ static void ath9k_hw_set_cck_nil(struct ath_hw *ah, u_int8_t immunityLevel)
 				     entry_cck->fir_step_level);
 
 	/* Skip MRC CCK for pre AR9003 families */
-	if (!AR_SREV_9300_20_OR_LATER(ah))
+	if (!AR_SREV_9300_20_OR_LATER(ah) || AR_SREV_9485(ah))
 		return;
 
 	if (aniState->mrcCCKOff == entry_cck->mrc_cck_on)