This gets rid of the BEGINRAW..ENDRAW sections in crypto/aes/build.info.

This also moves the assembler generating perl scripts to take the
output file name as last command line argument, where necessary.
Reviewed-by: NAndy Polyakov <appro@openssl.org>

Reviewed-by: NRichard Levitte <levitte@openssl.org>

Reviewed-by: NRich Salz <rsalz@openssl.org>
Reviewed-by: NRichard Levitte <levitte@openssl.org>

Reviewed-by: NMatt Caswell <matt@openssl.org>

This addresses

- request for improvement for faster key setup in RT#3576;
- clearing registers and stack in RT#3554 (this is more of a gesture to
see if there will be some traction from compiler side);
- more commentary around input parameters handling and stack layout
(desired when RT#3553 was reviewed);
- minor size and single block performance optimization (was lying around);
Reviewed-by: NMatt Caswell <matt@openssl.org>

Improve CBC decrypt and CTR by ~13/16%, which adds up to ~25/33%
improvement over "pre-Silvermont" version. [Add performance table to
aesni-x86.pl].

Atom Silvermont. On other CPUs one can observe 1% loss on some
algorithms.

modes/ccm128.c: minor branch optimization.

ghash-x86.pl.

Submitted by: Huang Ying