Fix a couple of problems with raw-sha1-opencl. And while at it, bump max
length to 55 and use "compressed" key buffer for a nice boost.
Merge branch 'bleeding-jumbo' into memdbg

* bleeding-jumbo:
  Fix a couple of problems with raw-sha1-opencl. And while at it, bump max length to 55 and use "compressed" key buffer for a nice boost.