ath9k: Use a consistent naming convention

This patch replaces old 'hal_' prefixes with 'ath9k_'.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 7e37570..ab34126 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -436,14 +436,14 @@
 	enum ath9k_ant_setting diversity_control;
 
 	/* Calibration */
-	enum hal_cal_types supp_cals;
-	struct hal_cal_list iq_caldata;
-	struct hal_cal_list adcgain_caldata;
-	struct hal_cal_list adcdc_calinitdata;
-	struct hal_cal_list adcdc_caldata;
-	struct hal_cal_list *cal_list;
-	struct hal_cal_list *cal_list_last;
-	struct hal_cal_list *cal_list_curr;
+	enum ath9k_cal_types supp_cals;
+	struct ath9k_cal_list iq_caldata;
+	struct ath9k_cal_list adcgain_caldata;
+	struct ath9k_cal_list adcdc_calinitdata;
+	struct ath9k_cal_list adcdc_caldata;
+	struct ath9k_cal_list *cal_list;
+	struct ath9k_cal_list *cal_list_last;
+	struct ath9k_cal_list *cal_list_curr;
 #define totalPowerMeasI meas0.unsign
 #define totalPowerMeasQ meas1.unsign
 #define totalIqCorrMeas meas2.sign