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>
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 29e5ce9..cd9f345 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3187,6 +3187,8 @@
 
 		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,