test_suite_psa_crypto_driver_wrappers: fix missing hit counter reset before test

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/tests/suites/test_suite_psa_crypto_driver_wrappers.function b/tests/suites/test_suite_psa_crypto_driver_wrappers.function
index 4fbc5e4..4346552 100644
--- a/tests/suites/test_suite_psa_crypto_driver_wrappers.function
+++ b/tests/suites/test_suite_psa_crypto_driver_wrappers.function
@@ -1490,6 +1490,7 @@
     }
 
     mbedtls_test_driver_cipher_hooks.cipher_update_hits = 0;
+    mbedtls_test_driver_cipher_hooks.cipher_encrypt_hits = 0;
     status = psa_cipher_encrypt(
         key, alg, input->x, input->len,
         output, output_buffer_size, &function_output_length);