psa: Add license header to crypto.h
diff --git a/include/psa/crypto.h b/include/psa/crypto.h
index 4c615f0..0ba3492 100644
--- a/include/psa/crypto.h
+++ b/include/psa/crypto.h
@@ -2,6 +2,22 @@
* \file psa/crypto.h
* \brief Platform Security Architecture cryptography module
*/
+/*
+ * Copyright (C) 2018, ARM Limited, All Rights Reserved
+ * 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 PSA_CRYPTO_H
#define PSA_CRYPTO_H