Update test wrapper functions for ciper buffer protection

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
diff --git a/tests/scripts/generate_psa_wrappers.py b/tests/scripts/generate_psa_wrappers.py
index 777f48b..372e3bf 100755
--- a/tests/scripts/generate_psa_wrappers.py
+++ b/tests/scripts/generate_psa_wrappers.py
@@ -146,7 +146,8 @@
         if function_name.startswith('psa_aead'):
             return True
         if function_name in {'psa_cipher_encrypt', 'psa_cipher_decrypt',
-                             'psa_cipher_update', 'psa_cipher_finish'}:
+                             'psa_cipher_update', 'psa_cipher_finish',
+                             'psa_cipher_generate_iv', 'psa_cipher_set_iv'}:
             return True
         if function_name in ('psa_key_derivation_output_bytes',
                              'psa_key_derivation_input_bytes'):