mwifiex: don't print error message on coex event

The BT coex event is not an error condition. Don't print an error
message in this case. The same even in sta_event.c prints a
message using the debug level already.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/marvell/mwifiex/uap_event.c

@@ -300,7 +300,7 @@ int mwifiex_process_uap_event(struct mwifiex_private *priv)
 		mwifiex_11h_handle_radar_detected(priv, adapter->event_skb);
 		break;
 	case EVENT_BT_COEX_WLAN_PARA_CHANGE:
-		dev_err(adapter->dev, "EVENT: BT coex wlan param update\n");
+		mwifiex_dbg(adapter, EVENT, "event: BT coex wlan param update\n");
 		mwifiex_bt_coex_wlan_param_update_event(priv,
 							adapter->event_skb);
 		break;