Initial MCTP core code

Just a skeleton of the MCTP library at present.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
diff --git a/libmctp-alloc.h b/libmctp-alloc.h
new file mode 100644
index 0000000..e7b00f4
--- /dev/null
+++ b/libmctp-alloc.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+#ifndef _LIBMCTP_ALLOC_H
+#define _LIBMCTP_ALLOC_H
+
+#include <stdlib.h>
+
+void *__mctp_alloc(size_t size);
+void __mctp_free(void *ptr);
+void *__mctp_realloc(void *ptr, size_t size);
+
+#endif /* _LIBMCTP_ALLOC_H */