psa: cipher: Pass Mbed TLS implementation its operation ctx

As per drivers, pass to the Mbed TLS implementation of
the cipher multi-part operation its operation context
and not the PSA operation context.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>

tests/include/test/drivers/cipher.h

@@ -31,7 +31,7 @@
 #include <psa/crypto.h>
 
 #include "mbedtls/cipher.h"
-typedef psa_cipher_operation_t test_transparent_cipher_operation_t;
+typedef mbedtls_psa_cipher_operation_t test_transparent_cipher_operation_t;
 
 typedef struct{
     unsigned int initialised : 1;