dt-bindings: crypto: add new compatible for A33 SS

The A33 SS has a difference with all other SS, it give SHA1 digest
directly in BE.
This difference need to be handlded by the driver and so need a new
compatible.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>