committ 9a780fa7db79b709787a9ca56fc324a118158da7
Author: Jingning Han <jingning@google.com>
  Rework forward 8x8 2D-DCT ssse3 implementation

commit 3e3a5686167a5493a5e2223635d1085cf8c963dd
Author: Johann <johannkoenig@google.com>
  fwd txfm ssse3: use GLOBAL() for loading constants

Change-Id: If7ca11a5b3c9dcf2ac7dbf8b7643e3424399d201