Fix typo which breaks 4x4 splitmv compound prediction RD code.
Fix typo which breaks 4x4 splitmv compound prediction RD code.

0.15% quality increase on derf, particularly noticeable on hard clips
at the higher bitrate end.

Change-Id: I02415a96eb9bbc361cba923069625fae71844bc9

kalli123/webm.libvpx,iniwf/webm.libvpx,matanbs/vp982,thdav/aom,Acidburn0zzz/webm.libvpx,sanyaade-teachings/libvpx,gshORTON/webm.libvpx,Suvarna1488/webm.libvpx,cinema6/libvpx,matanbs/webm.libvpx,jmvalin/aom,Suvarna1488/webm.libvpx,goodleixiao/vpx,altogother/webm.libvpx,jdm/libvpx,Suvarna1488/webm.libvpx,stewnorriss/libvpx,webmproject/libvpx,altogother/webm.libvpx,matanbs/vp982,thdav/aom,openpeer/libvpx_new,n4t/libvpx,turbulenz/libvpx,turbulenz/libvpx,luctrudeau/aom,mbebenita/aom,Suvarna1488/webm.libvpx,mbebenita/aom,mbebenita/aom,VTCSecureLLC/libvpx,thdav/aom,kim42083/webm.libvpx,abwiz0086/webm.libvpx,jmvalin/aom,sanyaade-teachings/libvpx,altogother/webm.libvpx,mbebenita/aom,iniwf/webm.libvpx,iniwf/webm.libvpx,smarter/aom,Laknot/libvpx,shacklettbp/aom,lyx2014/libvpx_c,hsueceumd/test_hui,turbulenz/libvpx,mwgoldsmith/libvpx,Distrotech/libvpx,reimaginemedia/webm.libvpx,kalli123/webm.libvpx,ShiftMediaProject/libvpx,Maria1099/webm.libvpx,matanbs/webm.libvpx,mwgoldsmith/libvpx,Topopiccione/libvpx,matanbs/webm.libvpx,cinema6/libvpx,matanbs/vp982,shyamalschandra/libvpx,cinema6/libvpx,luctrudeau/aom,GrokImageCompression/aom,pcwalton/libvpx,jacklicn/webm.libvpx,goodleixiao/vpx,gshORTON/webm.libvpx,Laknot/libvpx,webmproject/libvpx,kim42083/webm.libvpx,jacklicn/webm.libvpx,shareefalis/libvpx,reimaginemedia/webm.libvpx,turbulenz/libvpx,goodleixiao/vpx,Laknot/libvpx,mwgoldsmith/vpx,Acidburn0zzz/webm.libvpx,WebRTC-Labs/libvpx,ittiamvpx/libvpx-1,sanyaade-teachings/libvpx,Maria1099/webm.libvpx,running770/libvpx,openpeer/libvpx_new,Topopiccione/libvpx,sanyaade-teachings/libvpx,Distrotech/libvpx,matanbs/vp982,jacklicn/webm.libvpx,shacklettbp/aom,kalli123/webm.libvpx,lyx2014/libvpx_c,thdav/aom,cinema6/libvpx,turbulenz/libvpx,mwgoldsmith/libvpx,zofuthan/libvpx,reimaginemedia/webm.libvpx,jdm/libvpx,mwgoldsmith/vpx,stewnorriss/libvpx,ShiftMediaProject/libvpx,felipebetancur/libvpx,lyx2014/libvpx_c,jmvalin/aom,stewnorriss/libvpx,altogother/webm.libvpx,running770/libvpx,running770/libvpx,ShiftMediaProject/libvpx,running770/libvpx,felipebetancur/libvpx,jmvalin/aom,VTCSecureLLC/libvpx,ShiftMediaProject/libvpx,lyx2014/libvpx_c,charup/https---github.com-webmproject-libvpx-,Laknot/libvpx,Topopiccione/libvpx,matanbs/webm.libvpx,liqianggao/libvpx,smarter/aom,kim42083/webm.libvpx,shacklettbp/aom,mwgoldsmith/vpx,matanbs/webm.libvpx,iniwf/webm.libvpx,abwiz0086/webm.libvpx,VTCSecureLLC/libvpx,mwgoldsmith/libvpx,reimaginemedia/webm.libvpx,zofuthan/libvpx,matanbs/vp982,WebRTC-Labs/libvpx,jmvalin/aom,kalli123/webm.libvpx,kalli123/webm.libvpx,charup/https---github.com-webmproject-libvpx-,kim42083/webm.libvpx,shacklettbp/aom,shareefalis/libvpx,webmproject/libvpx,turbulenz/libvpx,smarter/aom,felipebetancur/libvpx,altogother/webm.libvpx,openpeer/libvpx_new,Distrotech/libvpx,jmvalin/aom,gshORTON/webm.libvpx,ittiamvpx/libvpx,iniwf/webm.libvpx,Maria1099/webm.libvpx,zofuthan/libvpx,kleopatra999/webm.libvpx,Laknot/libvpx,Suvarna1488/webm.libvpx,abwiz0086/webm.libvpx,abwiz0086/webm.libvpx,smarter/aom,WebRTC-Labs/libvpx,cinema6/libvpx,n4t/libvpx,GrokImageCompression/aom,shareefalis/libvpx,goodleixiao/vpx,WebRTC-Labs/libvpx,pcwalton/libvpx,shareefalis/libvpx,hsueceumd/test_hui,running770/libvpx,hsueceumd/test_hui,turbulenz/libvpx,running770/libvpx,kalli123/webm.libvpx,pcwalton/libvpx,ittiamvpx/libvpx,shareefalis/libvpx,kim42083/webm.libvpx,webmproject/libvpx,kleopatra999/webm.libvpx,GrokImageCompression/aom,ittiamvpx/libvpx-1,felipebetancur/libvpx,jdm/libvpx,ShiftMediaProject/libvpx,kim42083/webm.libvpx,zofuthan/libvpx,abwiz0086/webm.libvpx,cinema6/libvpx,liqianggao/libvpx,mwgoldsmith/libvpx,ittiamvpx/libvpx-1,kleopatra999/webm.libvpx,mbebenita/aom,charup/https---github.com-webmproject-libvpx-,charup/https---github.com-webmproject-libvpx-,thdav/aom,VTCSecureLLC/libvpx,jacklicn/webm.libvpx,luctrudeau/aom,Acidburn0zzz/webm.libvpx,matanbs/vp982,turbulenz/libvpx,lyx2014/libvpx_c,goodleixiao/vpx,WebRTC-Labs/libvpx,jdm/libvpx,felipebetancur/libvpx,ittiamvpx/libvpx,stewnorriss/libvpx,mbebenita/aom,matanbs/vp982,luctrudeau/aom,n4t/libvpx,Laknot/libvpx,gshORTON/webm.libvpx,jacklicn/webm.libvpx,lyx2014/libvpx_c,liqianggao/libvpx,gshORTON/webm.libvpx,openpeer/libvpx_new,Acidburn0zzz/webm.libvpx,stewnorriss/libvpx,Topopiccione/libvpx,zofuthan/libvpx,goodleixiao/vpx,cinema6/libvpx,kleopatra999/webm.libvpx,luctrudeau/aom,Topopiccione/libvpx,shyamalschandra/libvpx,shareefalis/libvpx,reimaginemedia/webm.libvpx,charup/https---github.com-webmproject-libvpx-,webmproject/libvpx,mbebenita/aom,Suvarna1488/webm.libvpx,felipebetancur/libvpx,ittiamvpx/libvpx-1,Maria1099/webm.libvpx,Distrotech/libvpx,jdm/libvpx,Maria1099/webm.libvpx,n4t/libvpx,Maria1099/webm.libvpx,matanbs/webm.libvpx,Distrotech/libvpx,mbebenita/aom,liqianggao/libvpx,shyamalschandra/libvpx,openpeer/libvpx_new,pcwalton/libvpx,shyamalschandra/libvpx,stewnorriss/libvpx,openpeer/libvpx_new,shacklettbp/aom,mwgoldsmith/vpx,jacklicn/webm.libvpx,Topopiccione/libvpx,GrokImageCompression/aom,mwgoldsmith/vpx,hsueceumd/test_hui,i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