Use armv8 instructions to optimize ARM32 crypto

[hong-rong hsu]

Excuse me, add more reviewers.

On Mon, 2015-01-05 at 18:12 +0800, hong-rong hsu wrote:
> Hi,
> 
> We are engineers from Mediatek. We have a patch to optimize ARM32 kernel
> crypto performance by armv8 instructions. Do you have interest in it?
> 
> It may be helpful for some projects which running 32-bit kernel at
> armv8. Do you suggest that we maintain it at the main-stream :-)? (ex.
> add aes-armv8.S in arch/arm/crypto/ folder)
> 
> Thanks.