Bluetooth: Shell: Fix issue that BR connection is not selected.

LE and BR connection have already been established, after that, LE
disconnection occurs, BR connection will not be selected as the next
default connection.

Fix this issue by searching for both BR and LE after disconnection
occurs.

Signed-off-by: Can Wang <can.wang@nxp.com>

Author: CanWang001

subsys/bluetooth/host/shell/bt.c

@@ -809,12 +809,7 @@ static void disconnected_set_new_default_conn_cb(struct bt_conn *conn, void *use
 	}
 
 	if (info.state == BT_CONN_STATE_CONNECTED) {
-		char addr_str[BT_ADDR_LE_STR_LEN];
-
 		default_conn = bt_conn_ref(conn);
-
-		bt_addr_le_to_str(info.le.dst, addr_str, sizeof(addr_str));
-		bt_shell_print("Selected conn is now: %s", addr_str);
 	}
 }
 
@@ -826,11 +821,27 @@ static void disconnected(struct bt_conn *conn, uint8_t reason)
 	bt_shell_print("Disconnected: %s (reason 0x%02x)", addr, reason);
 
 	if (default_conn == conn) {
+		struct bt_conn_info info;
+		enum bt_conn_type conn_type = BT_CONN_TYPE_LE;
+
+		if (IS_ENABLED(CONFIG_BT_CLASSIC)) {
+			conn_type |= BT_CONN_TYPE_BR;
+		}
+
+		bt_conn_get_info(conn, &info);
 		bt_conn_unref(default_conn);
 		default_conn = NULL;
 
 		/* If we are connected to other devices, set one of them as default */
-		bt_conn_foreach(BT_CONN_TYPE_LE, disconnected_set_new_default_conn_cb, NULL);
+		bt_conn_foreach(info.type, disconnected_set_new_default_conn_cb, NULL);
+		if (default_conn == NULL) {
+			bt_conn_foreach(conn_type, disconnected_set_new_default_conn_cb, NULL);
+		}
+
+		if (default_conn != NULL) {
+			conn_addr_str(default_conn, addr, sizeof(addr));
+			bt_shell_print("Selected conn is now: %s", addr);
+		}
 	}
 }