WPAPSK-opencl: Change auto-tune so we target a loop kernel duration of
max. 200ms instead of a total crypt_all() duration of max. 10 s. This
makes for a 16% boost on my laptop, 1% on GTX570 and no change on 7970.
Merge branch 'bleeding-jumbo' into memdbg

* bleeding-jumbo:
  WPAPSK-opencl: Change auto-tune so we target a loop kernel duration of max. 200ms instead of a total crypt_all() duration of max. 10 s. This makes for a 16% boost on my laptop, 1% on GTX570 and no change on 7970.