Fix license headers

Change-Id: I464bb34e2a46e5524f4008d1595d9f9c0c4334d4
diff --git a/camera/openvino-mqtt.py b/camera/openvino-mqtt.py
index 836f513..592cfbc 100644
--- a/camera/openvino-mqtt.py
+++ b/camera/openvino-mqtt.py
@@ -1,3 +1,8 @@
+"""
+SPDX-FileCopyrightText: 2022-present Intel Corporation
+SPDX-FileCopyrightText: 2020-present Open Networking Foundation <info@opennetworking.org>
+SPDX-License-Identifier: Apache-2.0
+"""
 import paho.mqtt.client as mqtt
 import time
 import os