ath9k: fix calibration on 5 ghz

SVN-Revision: 28110

package/mac80211/patches/590-ath9k_fix_5ghz_adc_cal.patch

@@ -0,0 +1,12 @@
+--- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c
++++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
+@@ -41,7 +41,8 @@ static bool ar9002_hw_is_cal_supported(s
+ 	case ADC_DC_CAL:
+ 		/* Run ADC Gain Cal for non-CCK & non 2GHz-HT20 only */
+ 		if (!IS_CHAN_B(chan) &&
+-		    !(IS_CHAN_2GHZ(chan) && IS_CHAN_HT20(chan)))
++		    !((IS_CHAN_2GHZ(chan) || IS_CHAN_A_FAST_CLOCK(ah, chan)) &&
++		      IS_CHAN_HT20(chan)))
+ 			supported = true;
+ 		break;
+ 	}