intrapred: protect functions w/CONFIG check x2
intrapred: protect functions w/CONFIG check x2

high-bitdepth version
d207e, d63e, d45e are only used with CONFIG_MISC_FIXES

Change-Id: I77292e11f51fd76d4127fd0027f876866bcf8675

mwgoldsmith/vpx,GrokImageCompression/aom,webmproject/libvpx,Topopiccione/libvpx,webmproject/libvpx,ShiftMediaProject/libvpx,luctrudeau/aom,mwgoldsmith/vpx,mbebenita/aom,GrokImageCompression/aom,mwgoldsmith/vpx,luctrudeau/aom,smarter/aom,mbebenita/aom,webmproject/libvpx,mwgoldsmith/vpx,mbebenita/aom,Topopiccione/libvpx,mbebenita/aom,mwgoldsmith/vpx,Topopiccione/libvpx,smarter/aom,ittiamvpx/libvpx-1,ShiftMediaProject/libvpx,mbebenita/aom,mwgoldsmith/libvpx,smarter/aom,luctrudeau/aom,mbebenita/aom,Topopiccione/libvpx,ittiamvpx/libvpx-1,webmproject/libvpx,ittiamvpx/libvpx-1,mbebenita/aom,mwgoldsmith/libvpx,ittiamvpx/libvpx-1,GrokImageCompression/aom,webmproject/libvpx,GrokImageCompression/aom,mwgoldsmith/libvpx,Topopiccione/libvpx,smarter/aom,smarter/aom,luctrudeau/aom,ittiamvpx/libvpx-1,ShiftMediaProject/libvpx,ittiamvpx/libvpx-1,Topopiccione/libvpx,webmproject/libvpx,mwgoldsmith/vpx,mwgoldsmith/libvpx,luctrudeau/aom,ShiftMediaProject/libvpx,luctrudeau/aom,mwgoldsmith/libvpx,mbebenita/aom,ShiftMediaProject/libvpx,GrokImageCompression/aom,mwgoldsmith/libvpx,GrokImageCompression/aom,smarter/aom,mbebenita/aom