Fix inttypes inclusion

__STDC_FORMAT_MACROS needs to be added for format specifiers like PRId32
IAR/ARMCC do not define it

Author: 0xc0170

main.cpp

@@ -17,6 +17,9 @@
 
 #include "psa/crypto.h"
 #include <string.h>
+#ifndef __STDC_FORMAT_MACROS
+#define __STDC_FORMAT_MACROS
+#endif
 #include <inttypes.h>
 
 #if defined(MBEDTLS_PLATFORM_C)