crypto: marvell - Don't copy hash operation twice into the SRAM

No need to copy the template of an hash operation twice into the SRAM
from the step function.

Fixes: commit 85030c51 ("crypto: marvell - Add support for chai...")
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>