hadamard_test: align src/dst buffers
hadamard_test: align src/dst buffers

fixes crash in 32-bit builds

Change-Id: I149e517c940a8cd43643e213bfbe077b6f579090

mbebenita/aom,mbebenita/aom,luctrudeau/aom,Topopiccione/libvpx,webmproject/libvpx,mbebenita/aom,ShiftMediaProject/libvpx,GrokImageCompression/aom,mwgoldsmith/libvpx,mwgoldsmith/libvpx,mwgoldsmith/vpx,webmproject/libvpx,GrokImageCompression/aom,Topopiccione/libvpx,smarter/aom,smarter/aom,mwgoldsmith/vpx,webmproject/libvpx,smarter/aom,mbebenita/aom,mbebenita/aom,mwgoldsmith/vpx,mwgoldsmith/libvpx,webmproject/libvpx,mwgoldsmith/libvpx,ShiftMediaProject/libvpx,smarter/aom,Topopiccione/libvpx,luctrudeau/aom,mwgoldsmith/vpx,luctrudeau/aom,smarter/aom,GrokImageCompression/aom,mwgoldsmith/libvpx,Topopiccione/libvpx,Topopiccione/libvpx,mwgoldsmith/libvpx,mwgoldsmith/vpx,GrokImageCompression/aom,webmproject/libvpx,ShiftMediaProject/libvpx,mbebenita/aom,luctrudeau/aom,mbebenita/aom,GrokImageCompression/aom,luctrudeau/aom,mbebenita/aom,GrokImageCompression/aom,Topopiccione/libvpx,smarter/aom,webmproject/libvpx,mbebenita/aom,ShiftMediaProject/libvpx,ShiftMediaProject/libvpx,luctrudeau/aom,mwgoldsmith/vpx