Use the new crypto_engine_alloc_init_and_set() function to
initialize crypto-engine and enable retry mechanism.
Set the maximum size for crypto-engine software queue based on
Job Ring size (JOBR_DEPTH) and a threshold (reserved for the
non-crypto-API requests that are not passed through crypto-engine).
The callback for do_batch_requests is NULL, since CAAM
doesn't support linked requests.