Fix dr memory VP8 encode/decode errors
Fix dr memory VP8 encode/decode errors

This patch fixed errors reported in Issue 746: "dr memory VP8
encode errors" and Issue 745: "dr memory VP8 decode errors".
The "UNINITIALIZED READ" errors were fixed in x86 assembly
code. The list of files fixed is
vp8_intra_pred_uv_tm_sse2
vp8_intra_pred_uv_tm_ssse3

vp8_intra_pred_uv_ho_mmx2
vp8_intra_pred_uv_ho_ssse3

vp8_intra_pred_y_tm_sse2
vp8_intra_pred_y_tm_ssse3

vp8_intra_pred_y_ho_sse2

Change-Id: Ib6df7bf1d442077fe534edfd90e50ad16fadacdd

mwgoldsmith/libvpx,iniwf/webm.libvpx,jacklicn/webm.libvpx,gshORTON/webm.libvpx,webmproject/libvpx,running770/libvpx,thdav/aom,matanbs/vp982,felipebetancur/libvpx,kim42083/webm.libvpx,shareefalis/libvpx,iniwf/webm.libvpx,shacklettbp/aom,VTCSecureLLC/libvpx,abwiz0086/webm.libvpx,shareefalis/libvpx,stewnorriss/libvpx,Distrotech/libvpx,stewnorriss/libvpx,thdav/aom,jdm/libvpx,altogother/webm.libvpx,luctrudeau/aom,goodleixiao/vpx,GrokImageCompression/aom,running770/libvpx,mbebenita/aom,kalli123/webm.libvpx,lyx2014/libvpx_c,jdm/libvpx,matanbs/vp982,Suvarna1488/webm.libvpx,openpeer/libvpx_new,Distrotech/libvpx,felipebetancur/libvpx,mwgoldsmith/libvpx,luctrudeau/aom,WebRTC-Labs/libvpx,Suvarna1488/webm.libvpx,abwiz0086/webm.libvpx,Acidburn0zzz/webm.libvpx,Distrotech/libvpx,GrokImageCompression/aom,openpeer/libvpx_new,lyx2014/libvpx_c,VTCSecureLLC/libvpx,jmvalin/aom,kleopatra999/webm.libvpx,kalli123/webm.libvpx,mwgoldsmith/vpx,charup/https---github.com-webmproject-libvpx-,liqianggao/libvpx,matanbs/webm.libvpx,hsueceumd/test_hui,shyamalschandra/libvpx,pcwalton/libvpx,matanbs/vp982,ittiamvpx/libvpx,jmvalin/aom,shareefalis/libvpx,openpeer/libvpx_new,jacklicn/webm.libvpx,mwgoldsmith/libvpx,matanbs/webm.libvpx,hsueceumd/test_hui,reimaginemedia/webm.libvpx,smarter/aom,shacklettbp/aom,ShiftMediaProject/libvpx,goodleixiao/vpx,ShiftMediaProject/libvpx,charup/https---github.com-webmproject-libvpx-,VTCSecureLLC/libvpx,mwgoldsmith/vpx,smarter/aom,shyamalschandra/libvpx,hsueceumd/test_hui,altogother/webm.libvpx,pcwalton/libvpx,mwgoldsmith/libvpx,kleopatra999/webm.libvpx,thdav/aom,charup/https---github.com-webmproject-libvpx-,iniwf/webm.libvpx,jmvalin/aom,Distrotech/libvpx,Acidburn0zzz/webm.libvpx,mwgoldsmith/libvpx,pcwalton/libvpx,goodleixiao/vpx,gshORTON/webm.libvpx,thdav/aom,matanbs/vp982,zofuthan/libvpx,ShiftMediaProject/libvpx,mwgoldsmith/vpx,Maria1099/webm.libvpx,hsueceumd/test_hui,Laknot/libvpx,n4t/libvpx,webmproject/libvpx,Topopiccione/libvpx,luctrudeau/aom,Acidburn0zzz/webm.libvpx,charup/https---github.com-webmproject-libvpx-,jmvalin/aom,shareefalis/libvpx,pcwalton/libvpx,Laknot/libvpx,abwiz0086/webm.libvpx,Suvarna1488/webm.libvpx,gshORTON/webm.libvpx,ittiamvpx/libvpx-1,pcwalton/libvpx,running770/libvpx,mbebenita/aom,kim42083/webm.libvpx,kalli123/webm.libvpx,n4t/libvpx,iniwf/webm.libvpx,Maria1099/webm.libvpx,shacklettbp/aom,ittiamvpx/libvpx-1,Topopiccione/libvpx,ittiamvpx/libvpx,ittiamvpx/libvpx,mbebenita/aom,running770/libvpx,kleopatra999/webm.libvpx,ittiamvpx/libvpx-1,Acidburn0zzz/webm.libvpx,kleopatra999/webm.libvpx,gshORTON/webm.libvpx,n4t/libvpx,GrokImageCompression/aom,mwgoldsmith/vpx,GrokImageCompression/aom,smarter/aom,matanbs/webm.libvpx,altogother/webm.libvpx,zofuthan/libvpx,altogother/webm.libvpx,n4t/libvpx,jdm/libvpx,zofuthan/libvpx,Laknot/libvpx,Laknot/libvpx,ittiamvpx/libvpx,jdm/libvpx,Maria1099/webm.libvpx,felipebetancur/libvpx,jacklicn/webm.libvpx,mwgoldsmith/vpx,shyamalschandra/libvpx,kim42083/webm.libvpx,mbebenita/aom,matanbs/webm.libvpx,matanbs/webm.libvpx,zofuthan/libvpx,abwiz0086/webm.libvpx,Maria1099/webm.libvpx,openpeer/libvpx_new,jacklicn/webm.libvpx,smarter/aom,Suvarna1488/webm.libvpx,matanbs/vp982,kim42083/webm.libvpx,iniwf/webm.libvpx,lyx2014/libvpx_c,shareefalis/libvpx,mbebenita/aom,mbebenita/aom,Suvarna1488/webm.libvpx,Maria1099/webm.libvpx,jdm/libvpx,luctrudeau/aom,ittiamvpx/libvpx-1,WebRTC-Labs/libvpx,goodleixiao/vpx,webmproject/libvpx,mbebenita/aom,VTCSecureLLC/libvpx,ittiamvpx/libvpx,Distrotech/libvpx,felipebetancur/libvpx,Suvarna1488/webm.libvpx,openpeer/libvpx_new,kleopatra999/webm.libvpx,kleopatra999/webm.libvpx,kalli123/webm.libvpx,zofuthan/libvpx,smarter/aom,reimaginemedia/webm.libvpx,altogother/webm.libvpx,running770/libvpx,reimaginemedia/webm.libvpx,Topopiccione/libvpx,reimaginemedia/webm.libvpx,jacklicn/webm.libvpx,webmproject/libvpx,abwiz0086/webm.libvpx,felipebetancur/libvpx,GrokImageCompression/aom,kim42083/webm.libvpx,shyamalschandra/libvpx,Topopiccione/libvpx,lyx2014/libvpx_c,shacklettbp/aom,n4t/libvpx,matanbs/vp982,WebRTC-Labs/libvpx,stewnorriss/libvpx,jmvalin/aom,zofuthan/libvpx,lyx2014/libvpx_c,ittiamvpx/libvpx-1,kim42083/webm.libvpx,iniwf/webm.libvpx,Maria1099/webm.libvpx,jdm/libvpx,smarter/aom,goodleixiao/vpx,reimaginemedia/webm.libvpx,stewnorriss/libvpx,ShiftMediaProject/libvpx,charup/https---github.com-webmproject-libvpx-,webmproject/libvpx,thdav/aom,matanbs/vp982,liqianggao/libvpx,webmproject/libvpx,goodleixiao/vpx,luctrudeau/aom,reimaginemedia/webm.libvpx,pcwalton/libvpx,liqianggao/libvpx,Laknot/libvpx,ittiamvpx/libvpx,Distrotech/libvpx,Topopiccione/libvpx,Laknot/libvpx,hsueceumd/test_hui,charup/https---github.com-webmproject-libvpx-,liqianggao/libvpx,ittiamvpx/libvpx-1,running770/libvpx,shareefalis/libvpx,felipebetancur/libvpx,mwgoldsmith/vpx,Topopiccione/libvpx,WebRTC-Labs/libvpx,liqianggao/libvpx,gshORTON/webm.libvpx,altogother/webm.libvpx,mbebenita/aom,kalli123/webm.libvpx,kalli123/webm.libvpx,thdav/aom,WebRTC-Labs/libvpx,jacklicn/webm.libvpx,Acidburn0zzz/webm.libvpx,matanbs/webm.libvpx,liqianggao/libvpx,hsueceumd/test_hui,shacklettbp/aom,VTCSecureLLC/libvpx,VTCSecureLLC/libvpx,gshORTON/webm.libvpx,lyx2014/libvpx_c,mbebenita/aom,ShiftMediaProject/libvpx,shacklettbp/aom,jmvalin/aom,Acidburn0zzz/webm.libvpx,shyamalschandra/libvpx,shyamalschandra/libvpx,GrokImageCompression/aom,abwiz0086/webm.libvpx,mwgoldsmith/libvpx,luctrudeau/aom,stewnorriss/libvpx,openpeer/libvpx_new,stewnorriss/libvpx