Include limits.h where needed
This will be needed when TF-PSA-Crypto's `build_info.h` stops including
`limits.h`, which it currently does by accident because it includes
`check_config.h` which wants `limits.h` to check `CHAR_BIT`.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/tests/src/test_helpers/ssl_helpers.c b/tests/src/test_helpers/ssl_helpers.c
index faa79ff..1eca6e4 100644
--- a/tests/src/test_helpers/ssl_helpers.c
+++ b/tests/src/test_helpers/ssl_helpers.c
@@ -11,6 +11,8 @@
#include <test/ssl_helpers.h>
#include "mbedtls/psa_util.h"
+#include <limits.h>
+
#if defined(MBEDTLS_SSL_TLS_C)
int mbedtls_test_random(void *p_rng, unsigned char *output, size_t output_len)
{