Add ViennaCK PR#181 patch.
Add ViennaCK PR#181 patch.

Fixes the following failure of the test command on Chromebook 2:

      F0713 13:35:11.616991 14231 syncedmem.cpp:263] Check failed:
      mapped_ptr == cpu_ptr_ (0 vs. 0x1f97000) Device claims it support
      zero copy but failed to create correct user ptr buffer

ctuning/ck-math,ctuning/ck-math,ctuning/ck-math,ctuning/ck-math