ath9k: use AR_SREV_9003_PCOEM to identify PCOEM chips

commit f49c90d ("ath9k: Add a macro to identify PCOEM chips")
defined AR_SREV_9003_PCOEM macro, its more clear to use the macro
instead of checking one by one. Also removed PCOEM chips checking
in the callback of ar9003_hw_do_pcoem_manual_peak_cal() which only
for PCOEM chips.

Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath9k/ar9003_calib.c

@@ -1311,9 +1311,6 @@ static void ar9003_hw_do_pcoem_manual_peak_cal(struct ath_hw *ah,
 	struct ath9k_hw_cal_data *caldata = ah->caldata;
 	int i;
 
-	if (!AR_SREV_9462(ah) && !AR_SREV_9565(ah) && !AR_SREV_9485(ah))
-		return;
-
 	if ((ah->caps.hw_caps & ATH9K_HW_CAP_RTT) && !run_rtt_cal)
 		return;
 
@@ -1707,7 +1704,7 @@ void ar9003_hw_attach_calib_ops(struct ath_hw *ah)
 	struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
 	struct ath_hw_ops *ops = ath9k_hw_ops(ah);
 
-	if (AR_SREV_9485(ah) || AR_SREV_9462(ah) || AR_SREV_9565(ah))
+	if (AR_SREV_9003_PCOEM(ah))
 		priv_ops->init_cal = ar9003_hw_init_cal_pcoem;
 	else
 		priv_ops->init_cal = ar9003_hw_init_cal_soc;