hal: add digital signature peripheral verification tests

- also renamed the security test app to crypto test app

components/hal/test_apps/crypto/pytest_crypto.py

@@ -0,0 +1,11 @@
+# SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: CC0-1.0
+
+import pytest
+from pytest_embedded import Dut
+
+
+@pytest.mark.supported_targets
+@pytest.mark.generic
+def test_crypto(dut: Dut) -> None:
+    dut.expect('main_task: Returned from app_main()')