sysinv source code file missing license

[Bill Zvonar]

Brief Description
-----------------
The following sysinv file includes a standard WR license:

sysinv/tests/api/test_sensorgroup.py

This needs to be corrected to the Apache-2 license.

Severity
--------
Minor, but should be corrected.

Steps to Reproduce
------------------
- Go to the starlingx sysinv github
- Verify the license for the above file

Expected Behavior
------------------
The license should be as follows:
#
# Copyright (c) 2017-2019 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#

Actual Behavior
----------------
Instead there is no license in the file

Reproducibility
---------------
N/A

System Configuration
--------------------
N/A

Branch/Pull Time/Commit
-----------------------
master, any time up to the time of issuing this bug report

Last Pass
---------
N/A

Timestamp/Logs
--------------
N/A

Test Activity
-------------
Other - code browsing

[Ghada Khalil (gkhalil)]

stx.3.0 / medium priority - should be fixed before stx.3.0 goes out

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/690427

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/690427
Committed: https://git.openstack.org/cgit/starlingx/config/commit/?id=58dc330684976a38ad8f11d0b6c375af3d10e30f
Submitter: Zuul
Branch: master

commit 58dc330684976a38ad8f11d0b6c375af3d10e30f
Author: Andrew Troake <email address hidden>
Date: Tue Oct 22 17:51:22 2019 -0400

    Add license to test_sensorgroup.py

    Change-Id: I8b0780618e4f6fca1e5b3b8fb711f8e8a2938e3a
    Closes-Bug: 1849144