psa: Introduce psa/build_info.h

The PSA cryptography repository is based to
start with on the PSA cryptography implementation
in Mbed TLS but with a different directority
structure, build system and build configuration.

The build-time configuration information in the
PSA cryptography repository is psa/build_info.h.
This commit introduces this file in Mbed TLS to
be used in place of mbedtls/build_info.h (but
basically just an alias to it) in PSA headers.
This is to ease the update of the PSA cryptography
repository.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>

include/psa/build_info.h

@@ -0,0 +1,32 @@
+/**
+ * \file build_info.h
+ *
+ * \brief Build-time PSA configuration info
+ *
+ *  Include this file if you need to depend on the
+ *  configuration options defined in mbedtls_config.h or MBEDTLS_CONFIG_FILE
+ *  in PSA cryptography core specific files.
+ */
+/*
+ *  Copyright The Mbed TLS Contributors
+ *  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_BUILD_INFO_H
+#define PSA_CRYPTO_BUILD_INFO_H
+
+#include "mbedtls/build_info.h"
+
+#endif /* PSA_CRYPTO_BUILD_INFO_H */