Convert to SPDX-License-Indentifiers

Instead of adding the same 'boilerplate' license text, we can use the
much more concise SPDX Short License Identifiers.
Only the standard BSD-2 clause text has been replaced.
See spdx.org for more details.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
diff --git a/test/integration/esys-pcr-basic.int.c b/test/integration/esys-pcr-basic.int.c
index 2410fe3..b547d86 100644
--- a/test/integration/esys-pcr-basic.int.c
+++ b/test/integration/esys-pcr-basic.int.c
@@ -1,28 +1,7 @@
+/* SPDX-License-Identifier: BSD-2 */
 /*******************************************************************************
  * Copyright 2017-2018, Fraunhofer SIT sponsored by Infineon Technologies AG
  * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
  *******************************************************************************/
 
 #include "tss2_esys.h"