Add LZO compression support to cryptoapi

[Zoltan Sogor]

This is a multi-part message in MIME format.Hello Herbert!

I'm Zoltan Sogor at University of Szeged, Hungary, and we are working on 
new flash file system (UBIFS) cooperating with Nokia Corp. We would like 
to use cryptoapi in UBIFS compression/encrypt mechanism.

I've ported LZO compressor into cryptoapi. If you think the patch is 
good, please apply it.

If you have any problem with the patch, your feedbacks are welcome.

Thanks,
  Zoltan