Fix provider compatibility check crash in evp_test

EVP_MAC_CTX_get_mac_size() cannot be called on older
unfixed versions before EVP_MAC_init().

test/evp_test.c

@@ -1427,7 +1427,7 @@ static int mac_test_run_mac(EVP_TEST *t)
  EVP_MAC_CTX *ctx = NULL;
  unsigned char *got = NULL;
  size_t got_len = 0, size = 0;
- size_t size_before_init, size_after_init, size_val = 0;
+ size_t size_before_init = 0, size_after_init, size_val = 0;
  int i, block_size = -1, output_size = -1;
  OSSL_PARAM params[21], sizes[3], *psizes = sizes;
  size_t params_n = 0;
@@ -1535,7 +1535,8 @@ static int mac_test_run_mac(EVP_TEST *t)
  t->err = "MAC_CREATE_ERROR";
  goto err;
  }
- size_before_init = EVP_MAC_CTX_get_mac_size(ctx);
+ if (fips_provider_version_gt(libctx, 3, 1, 4))
+ size_before_init = EVP_MAC_CTX_get_mac_size(ctx);
  if (!EVP_MAC_init(ctx, expected->key, expected->key_len, params)) {
  t->err = "MAC_INIT_ERROR";
  goto err;