ath9k: Initialize the priority gpio for BT coex 3-wire

Oops, a stupid mistake in the original patch which adds coex 3-wire
support. Bluetooth priority gpio needs to be gpio 7.
Signed-off-by: NVasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/btcoex.h

@@ -19,6 +19,7 @@
 
 #define ATH_WLANACTIVE_GPIO	5
 #define ATH_BTACTIVE_GPIO	6
+#define ATH_BTPRIORITY_GPIO	7
 
 #define ATH_BTCOEX_DEF_BT_PERIOD  45
 #define ATH_BTCOEX_DEF_DUTY_CYCLE 55

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

@@ -3691,10 +3691,12 @@ void ath9k_hw_fill_cap_info(struct ath_hw *ah)
 		btcoex_info->btactive_gpio = ATH_BTACTIVE_GPIO;
 		btcoex_info->wlanactive_gpio = ATH_WLANACTIVE_GPIO;
 
-		if (AR_SREV_9285(ah))
+		if (AR_SREV_9285(ah)) {
 			btcoex_info->btcoex_scheme = ATH_BTCOEX_CFG_3WIRE;
-		else
+			btcoex_info->btpriority_gpio = ATH_BTPRIORITY_GPIO;
+		} else {
 			btcoex_info->btcoex_scheme = ATH_BTCOEX_CFG_2WIRE;
+		}
 	} else {
 		btcoex_info->btcoex_scheme = ATH_BTCOEX_CFG_NONE;
 	}