arm/crypto: Add optimized AES and SHA1 routines

Add assembler versions of AES and SHA1 for ARM platforms.  This has
provided
up to a 50% improvement in IPsec/TCP throughout for tunnels using
AES128/SHA1.

Platform   CPU SPeed    Endian   Before (bps)   After (bps)
Improvement

IXP425      533 MHz      big     11217042        15566294        ~38%
KS8695      166 MHz     little    3828549         5795373        ~51%

Signed-off-by: David McCullough <ucdevel@gmail.com>
Signed-off-by: faux123 <reioux@gmail.com>

idea is taken here -
https://github.com/faux123/htc-m7/commit/c0ba128cef09140af22ccd0ba9f67d7bdcb5261a