crypto_se_driver: add mock tests

Mock key importing and exporting
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 7e54370..7dcc98d 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -143,6 +143,7 @@
 add_test_suite(psa_crypto_metadata)
 add_test_suite(psa_crypto_persistent_key)
 add_test_suite(psa_crypto_se_driver_hal)
+add_test_suite(psa_crypto_se_driver_hal_mocks)
 add_test_suite(psa_crypto_slot_management)
 add_test_suite(psa_its)
 add_test_suite(shax)