Bluetooth: Fix missing ext info event when setting appearance

This patch adds missing event when setting appearance, just like
in the set local name command.

Signed-off-by: Michał Narajowski <michal.narajowski@codecoup.pl>
Signed-off-by: Szymon Janc <szymon.janc@codecoup.pl>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/bluetooth/mgmt.c

@@ -3187,6 +3187,8 @@ static int set_appearance(struct sock *sk, struct hci_dev *hdev, void *data,
 
 		if (hci_dev_test_flag(hdev, HCI_LE_ADV))
 			adv_expire(hdev, MGMT_ADV_FLAG_APPEARANCE);
+
+		ext_info_changed(hdev, sk);
 	}
 
 	err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_APPEARANCE, 0, NULL,