build_intra_predictors*: reduce above_data size
build_intra_predictors*: reduce above_data size

currently this needs to be 2x (NEED_ABOVERIGHT) the size of the largest
block (32) + 1 (for above_left). reduce the buffer size from 128 + 16
(alignment) to 64 + 16.

Change-Id: Idaca1806c7e1214e9437de24e15edc2ebf18f95d

felipebetancur/libvpx,mwgoldsmith/vpx,liqianggao/libvpx,liqianggao/libvpx,zofuthan/libvpx,mbebenita/aom,GrokImageCompression/aom,smarter/aom,luctrudeau/aom,mbebenita/aom,stewnorriss/libvpx,ittiamvpx/libvpx-1,mbebenita/aom,goodleixiao/vpx,goodleixiao/vpx,shyamalschandra/libvpx,zofuthan/libvpx,openpeer/libvpx_new,openpeer/libvpx_new,jmvalin/aom,thdav/aom,ShiftMediaProject/libvpx,jmvalin/aom,liqianggao/libvpx,mwgoldsmith/libvpx,shacklettbp/aom,mbebenita/aom,webmproject/libvpx,shacklettbp/aom,Topopiccione/libvpx,Topopiccione/libvpx,felipebetancur/libvpx,ShiftMediaProject/libvpx,smarter/aom,ShiftMediaProject/libvpx,VTCSecureLLC/libvpx,jmvalin/aom,openpeer/libvpx_new,Topopiccione/libvpx,mbebenita/aom,VTCSecureLLC/libvpx,mwgoldsmith/vpx,mwgoldsmith/vpx,mwgoldsmith/libvpx,jmvalin/aom,shyamalschandra/libvpx,Topopiccione/libvpx,webmproject/libvpx,felipebetancur/libvpx,running770/libvpx,webmproject/libvpx,liqianggao/libvpx,webmproject/libvpx,jmvalin/aom,thdav/aom,GrokImageCompression/aom,stewnorriss/libvpx,goodleixiao/vpx,running770/libvpx,felipebetancur/libvpx,thdav/aom,shyamalschandra/libvpx,mbebenita/aom,openpeer/libvpx_new,webmproject/libvpx,mwgoldsmith/vpx,mwgoldsmith/libvpx,shacklettbp/aom,shacklettbp/aom,luctrudeau/aom,smarter/aom,Topopiccione/libvpx,VTCSecureLLC/libvpx,mbebenita/aom,shyamalschandra/libvpx,GrokImageCompression/aom,running770/libvpx,ittiamvpx/libvpx-1,ittiamvpx/libvpx-1,ShiftMediaProject/libvpx,Topopiccione/libvpx,jmvalin/aom,goodleixiao/vpx,ittiamvpx/libvpx-1,GrokImageCompression/aom,GrokImageCompression/aom,VTCSecureLLC/libvpx,zofuthan/libvpx,shyamalschandra/libvpx,stewnorriss/libvpx,zofuthan/libvpx,ittiamvpx/libvpx-1,mwgoldsmith/libvpx,VTCSecureLLC/libvpx,mbebenita/aom,mwgoldsmith/libvpx,zofuthan/libvpx,GrokImageCompression/aom,stewnorriss/libvpx,webmproject/libvpx,luctrudeau/aom,felipebetancur/libvpx,running770/libvpx,stewnorriss/libvpx,shyamalschandra/libvpx,thdav/aom,smarter/aom,luctrudeau/aom,thdav/aom,shacklettbp/aom,running770/libvpx,mbebenita/aom,ittiamvpx/libvpx-1,luctrudeau/aom,thdav/aom,goodleixiao/vpx,ShiftMediaProject/libvpx,smarter/aom,mwgoldsmith/vpx,running770/libvpx,liqianggao/libvpx,stewnorriss/libvpx,felipebetancur/libvpx,smarter/aom,mwgoldsmith/libvpx,goodleixiao/vpx,mwgoldsmith/vpx,zofuthan/libvpx,openpeer/libvpx_new,luctrudeau/aom,openpeer/libvpx_new,VTCSecureLLC/libvpx,shacklettbp/aom,liqianggao/libvpx