bct_dump: don't crash on devices without RSA support

format_rsa_param() currently crashes on chips that don't implement
soc_config->get_value_size(); that is, on all chips before T124. Fix the
function not to crash. Better might be to avoid even dumping RSA
parameters on chips which don't support RSA, but that's a larger change
that needs much more work.

Fixes: 3c3b992 ("Add support to dump rsa related fields for t210")
Cc: Jimmy Zhang <jimmzhang@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>

Author: nvswarren

src/bct_dump.c

@@ -133,10 +133,14 @@ static void format_rsa_param(parse_token id, char const * message, void * data)
 {
 #define MAX_BYTE_NUMBER_PER_LINE	16
 	u_int8_t *rsa = (u_int8_t *)data;
-	int size = g_soc_config->get_value_size(id);
-	int byte_index;
+	int size, byte_index;
 
 	printf("%s", message);
+
+	if (!g_soc_config->get_value_size)
+		return;
+
+	size = g_soc_config->get_value_size(id);
 	for (byte_index = 0; byte_index < size; ++byte_index) {
 		printf(" %02x", *rsa++);