Bluetooth: fix spelling mistake: "advetising" -> "advertising"

trivial fix to spelling mistake in BT_ERR_RATELIMITED error message
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/bluetooth/hci_event.c

@@ -4749,7 +4749,7 @@ static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
 	case LE_ADV_SCAN_RSP:
 		break;
 	default:
-		BT_ERR_RATELIMITED("Unknown advetising packet type: 0x%02x",
+		BT_ERR_RATELIMITED("Unknown advertising packet type: 0x%02x",
 				   type);
 		return;
 	}