Avoid a potential assertion fail in optimize_b()
Avoid a potential assertion fail in optimize_b()

The eob of a block is not perperly set when skip_recode is true,
thus triggering assert(eob <= default_eob) to fail.

Change-Id: Ifecbe33dce2dc4903e0a80bd384dc09bf0dd8a44

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