evp_test: Skip testcase if r parameter is unsupported

The r parameter of the KBKDF is unsupported by 3.0 FIPS module.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from #17671)

(cherry picked from commit bbbd121)
Reviewed-by: Hugo Landau <hlandau@openssl.org>

test/evp_test.c

@@ -2760,6 +2760,13 @@ static int kdf_test_ctrl(EVP_TEST *t, EVP_KDF_CTX *kctx,
     if (p != NULL)
         *p++ = '\0';
 
+    if (strcmp(name, "r") == 0
+        && OSSL_PARAM_locate_const(defs, name) == NULL) {
+        TEST_info("skipping, setting 'r' is unsupported");
+        t->skip = 1;
+        goto end;
+    }
+
     rv = OSSL_PARAM_allocate_from_text(kdata->p, defs, name, p,
                                        p != NULL ? strlen(p) : 0, NULL);
     *++kdata->p = OSSL_PARAM_construct_end();
@@ -2773,20 +2780,23 @@ static int kdf_test_ctrl(EVP_TEST *t, EVP_KDF_CTX *kctx,
             TEST_info("skipping, '%s' is disabled", p);
             t->skip = 1;
         }
+        goto end;
     }
     if (p != NULL
         && (strcmp(name, "cipher") == 0
             || strcmp(name, "cekalg") == 0)
         && is_cipher_disabled(p)) {
         TEST_info("skipping, '%s' is disabled", p);
         t->skip = 1;
+        goto end;
     }
     if (p != NULL
         && (strcmp(name, "mac") == 0)
         && is_mac_disabled(p)) {
         TEST_info("skipping, '%s' is disabled", p);
         t->skip = 1;
     }
+ end:
     OPENSSL_free(name);
     return 1;
 }