rtlwifi: btcoex: 21a 2ant: force wifi to use RF path A

Let the wifi use main antenna to have higher power.
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c

@@ -2714,6 +2714,8 @@ static void btc8821a2ant_action_hid(struct btc_coexist *btcoexist)
 	bt_rssi_state = btc8821a2ant_bt_rssi_state(btcoexist,
 		2, BT_8821A_2ANT_BT_RSSI_COEXSWITCH_THRES, 0);
 
+	btcoexist->btc_set_rf_reg(btcoexist, BTC_RF_A, 0x1, 0xfffff, 0x0);
+
 	btc8821a2ant_limited_rx(btcoexist, NORMAL_EXEC, false, false, 0x8);
 	btc8821a2ant_fw_dac_swing_lvl(btcoexist, NORMAL_EXEC, 6);