Added submodule contents into tree

externals/mbedtls/programs/test/query_config.h

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+/*
+ *  Query Mbed TLS compile time configurations from mbedtls_config.h
+ *
+ *  Copyright The Mbed TLS Contributors
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+ */
+
+#ifndef MBEDTLS_PROGRAMS_TEST_QUERY_CONFIG_H
+#define MBEDTLS_PROGRAMS_TEST_QUERY_CONFIG_H
+
+#include "mbedtls/build_info.h"
+
+/** Check whether a given configuration symbol is enabled.
+ *
+ * \param config    The symbol to query (e.g. "MBEDTLS_RSA_C").
+ * \return          \c 0 if the symbol was defined at compile time
+ *                  (in MBEDTLS_CONFIG_FILE or mbedtls_config.h),
+ *                  \c 1 otherwise.
+ *
+ * \note            This function is defined in `programs/test/query_config.c`
+ *                  which is automatically generated by
+ *                  `scripts/generate_query_config.pl`.
+ */
+int query_config(const char *config);
+
+/** List all enabled configuration symbols
+ *
+ * \note            This function is defined in `programs/test/query_config.c`
+ *                  which is automatically generated by
+ *                  `scripts/generate_query_config.pl`.
+ */
+void list_config(void);
+
+#endif /* MBEDTLS_PROGRAMS_TEST_QUERY_CONFIG_H */