Add license headers into TLSSocket unittests

Author: Seppo Takalo

UNITTESTS/features/netsocket/DTLSSocket/dtls_test_config.h

@@ -1,5 +1,18 @@
 /*
- * dtls_test_config.h
+ * Copyright (c) 2018, Arm Limited and affiliates
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef UNITTESTS_FEATURES_NETSOCKET_DTLSSOCKET_DTLS_TEST_CONFIG_H_

UNITTESTS/features/netsocket/DTLSSocketWrapper/dtls_test_config.h

@@ -1,5 +1,18 @@
 /*
- * tls_test_config.h
+ * Copyright (c) 2018, Arm Limited and affiliates
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef UNITTESTS_FEATURES_NETSOCKET_DTLSSOCKETWRAPPER_TLS_TEST_CONFIG_H_