Create memory poisoning wrapper for cipher encrypt

Use the preprocessor to wrap psa_cipher_encrypt in a wrapper that
poisons the input and output buffers.

Signed-off-by: David Horstmann <david.horstmann@arm.com>

tests/include/test/psa_memory_poisoning_wrappers.h

@@ -0,0 +1,27 @@
+#include "psa/crypto.h"
+
+#include "test/memory.h"
+
+psa_status_t wrap_psa_cipher_encrypt(mbedtls_svc_key_id_t key,
+                                     psa_algorithm_t alg,
+                                     const uint8_t *input,
+                                     size_t input_length,
+                                     uint8_t *output,
+                                     size_t output_size,
+                                     size_t *output_length)
+{
+    MBEDTLS_TEST_MEMORY_POISON(input, input_length);
+    MBEDTLS_TEST_MEMORY_POISON(output, output_size);
+    psa_status_t status = psa_cipher_encrypt(key,
+                                             alg,
+                                             input,
+                                             input_length,
+                                             output,
+                                             output_size,
+                                             output_length);
+    MBEDTLS_TEST_MEMORY_UNPOISON(input, input_length);
+    MBEDTLS_TEST_MEMORY_UNPOISON(output, output_size);
+    return status;
+}
+
+#define psa_cipher_encrypt(...) wrap_psa_cipher_encrypt(__VA_ARGS__)