Add HPE to LICENSE

Add Hewlett Packard Enterprise to LICENSE

Signed-off-by: Harumi Kuno <harumi.kuno@hpe.com>

Author: hkuno

LICENSE

@@ -56,6 +56,7 @@ Copyright (c) 2017-2021 Amazon.com, Inc. or its affiliates.  All Rights
                         reserved.
 Copyright (c) 2018      DataDirect Networks. All rights reserved.
 Copyright (c) 2018-2021 Triad National Security, LLC. All rights reserved.
+Copyright (c) 2019-2021 Hewlett Packard Enterprise Development, LP.
 Copyright (c) 2020-2021 Google, LLC. All rights reserved.
 Copyright (c) 2002      University of Chicago
 Copyright (c) 2001      Argonne National Laboratory