rtlwifi: rtl8723ae: fix spelling mistake: "Coexistance" -> "Coexistence"

Trivial fix to spelling mistake in RT_TRACE text
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/realtek/rtlwifi/rtl8723ae/hw.c

@@ -2313,7 +2313,7 @@ static void rtl8723e_bt_var_init(struct ieee80211_hw *hw)
 		rtlpriv->btcoexist.eeprom_bt_radio_shared;
 
 	RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_TRACE,
-		 "BT Coexistance = 0x%x\n",
+		 "BT Coexistence = 0x%x\n",
 		 rtlpriv->btcoexist.bt_coexistence);
 
 	if (rtlpriv->btcoexist.bt_coexistence) {