Add MBEDTLS_ALLOW_PRIVATE_ACCESS to test programs

Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
diff --git a/programs/fuzz/fuzz_client.c b/programs/fuzz/fuzz_client.c
index 618eda2..40ca90a 100644
--- a/programs/fuzz/fuzz_client.c
+++ b/programs/fuzz/fuzz_client.c
@@ -1,3 +1,5 @@
+#define MBEDTLS_ALLOW_PRIVATE_ACCESS
+
 #include "mbedtls/ssl.h"
 #include "mbedtls/entropy.h"
 #include "mbedtls/ctr_drbg.h"