rtlwifi: Add ap_num field for btcoexist

If there are many AP (dirty environment), we use another strategy set
to resolve coex issue.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c

@@ -503,10 +503,7 @@ static bool halbtc_get(void *void_btcoexist, u8 get_type, void *out_buf)
 		ret = false;
 		break;
 	case BTC_GET_U1_AP_NUM:
-		/* driver do not know AP num,
-		 * so the return value here is not right
-		 */
-		*u8_tmp = 1;
+		*u8_tmp = rtlpriv->btcoexist.btc_info.ap_num;
 		break;
 	case BTC_GET_U1_ANT_TYPE:
 		*u8_tmp = (u8)BTC_ANT_TYPE_0;

drivers/net/wireless/realtek/rtlwifi/pci.c

@@ -1824,6 +1824,7 @@ static int rtl_pci_start(struct ieee80211_hw *hw)
 	rtlpci->driver_is_goingto_unload = false;
 	if (rtlpriv->cfg->ops->get_btc_status &&
 	    rtlpriv->cfg->ops->get_btc_status()) {
+		rtlpriv->btcoexist.btc_info.ap_num = 36;
 		rtlpriv->btcoexist.btc_ops->btc_init_variables(rtlpriv);
 		rtlpriv->btcoexist.btc_ops->btc_init_hal_vars(rtlpriv);
 	}

drivers/net/wireless/realtek/rtlwifi/wifi.h

@@ -2481,6 +2481,8 @@ struct rtl_btc_info {
 	u8 btcoexist;
 	u8 ant_num;
 	u8 single_ant_path;
+
+	u8 ap_num;
 };
 
 struct bt_coexist_info {