Test loopfilters with count=2
Test loopfilters with count=2

The following functions use the count parameter to either loop or select
dedicated paths:
vp9_lpf_horizontal_16_c
vp9_lpf_horizontal_16_sse2
vp9_lpf_horizontal_16_avx2
vp9_lpf_horizontal_16_neon
vp9_highbd_lpf_horizontal_16_c
vp9_highbd_lpf_horizontal_16_sse2

Change-Id: I7abfd2cb30baa292b4ebe11c847968481103c037

Suvarna1488/webm.libvpx,smarter/aom,Topopiccione/libvpx,GrokImageCompression/aom,shacklettbp/aom,Topopiccione/libvpx,mbebenita/aom,goodleixiao/vpx,kalli123/webm.libvpx,jmvalin/aom,shyamalschandra/libvpx,VTCSecureLLC/libvpx,webmproject/libvpx,stewnorriss/libvpx,jacklicn/webm.libvpx,luctrudeau/aom,Topopiccione/libvpx,shacklettbp/aom,mbebenita/aom,liqianggao/libvpx,ShiftMediaProject/libvpx,mwgoldsmith/libvpx,jmvalin/aom,mwgoldsmith/libvpx,gshORTON/webm.libvpx,shyamalschandra/libvpx,smarter/aom,webmproject/libvpx,lyx2014/libvpx_c,goodleixiao/vpx,gshORTON/webm.libvpx,mbebenita/aom,mwgoldsmith/vpx,stewnorriss/libvpx,shyamalschandra/libvpx,iniwf/webm.libvpx,jacklicn/webm.libvpx,mwgoldsmith/vpx,felipebetancur/libvpx,GrokImageCompression/aom,shacklettbp/aom,stewnorriss/libvpx,ShiftMediaProject/libvpx,mbebenita/aom,iniwf/webm.libvpx,shacklettbp/aom,liqianggao/libvpx,Suvarna1488/webm.libvpx,VTCSecureLLC/libvpx,abwiz0086/webm.libvpx,running770/libvpx,abwiz0086/webm.libvpx,GrokImageCompression/aom,abwiz0086/webm.libvpx,mbebenita/aom,liqianggao/libvpx,running770/libvpx,jacklicn/webm.libvpx,mbebenita/aom,goodleixiao/vpx,ittiamvpx/libvpx-1,lyx2014/libvpx_c,mwgoldsmith/vpx,mwgoldsmith/libvpx,openpeer/libvpx_new,jacklicn/webm.libvpx,GrokImageCompression/aom,smarter/aom,felipebetancur/libvpx,thdav/aom,jmvalin/aom,thdav/aom,jacklicn/webm.libvpx,Suvarna1488/webm.libvpx,goodleixiao/vpx,Topopiccione/libvpx,stewnorriss/libvpx,shyamalschandra/libvpx,iniwf/webm.libvpx,GrokImageCompression/aom,Topopiccione/libvpx,goodleixiao/vpx,zofuthan/libvpx,zofuthan/libvpx,running770/libvpx,iniwf/webm.libvpx,ShiftMediaProject/libvpx,running770/libvpx,ittiamvpx/libvpx-1,luctrudeau/aom,zofuthan/libvpx,gshORTON/webm.libvpx,abwiz0086/webm.libvpx,jmvalin/aom,thdav/aom,jacklicn/webm.libvpx,gshORTON/webm.libvpx,kalli123/webm.libvpx,shacklettbp/aom,kalli123/webm.libvpx,lyx2014/libvpx_c,VTCSecureLLC/libvpx,thdav/aom,luctrudeau/aom,ShiftMediaProject/libvpx,lyx2014/libvpx_c,VTCSecureLLC/libvpx,luctrudeau/aom,mbebenita/aom,openpeer/libvpx_new,webmproject/libvpx,kalli123/webm.libvpx,webmproject/libvpx,stewnorriss/libvpx,webmproject/libvpx,VTCSecureLLC/libvpx,mwgoldsmith/libvpx,zofuthan/libvpx,felipebetancur/libvpx,openpeer/libvpx_new,shyamalschandra/libvpx,kalli123/webm.libvpx,thdav/aom,ShiftMediaProject/libvpx,webmproject/libvpx,abwiz0086/webm.libvpx,shacklettbp/aom,ittiamvpx/libvpx-1,abwiz0086/webm.libvpx,smarter/aom,liqianggao/libvpx,Suvarna1488/webm.libvpx,Topopiccione/libvpx,zofuthan/libvpx,openpeer/libvpx_new,luctrudeau/aom,mbebenita/aom,liqianggao/libvpx,smarter/aom,felipebetancur/libvpx,luctrudeau/aom,shyamalschandra/libvpx,gshORTON/webm.libvpx,VTCSecureLLC/libvpx,lyx2014/libvpx_c,mbebenita/aom,mwgoldsmith/vpx,iniwf/webm.libvpx,mwgoldsmith/libvpx,jmvalin/aom,lyx2014/libvpx_c,ittiamvpx/libvpx-1,Suvarna1488/webm.libvpx,liqianggao/libvpx,gshORTON/webm.libvpx,mwgoldsmith/vpx,running770/libvpx,openpeer/libvpx_new,ittiamvpx/libvpx-1,iniwf/webm.libvpx,running770/libvpx,kalli123/webm.libvpx,thdav/aom,Suvarna1488/webm.libvpx,smarter/aom,goodleixiao/vpx,zofuthan/libvpx,felipebetancur/libvpx,mwgoldsmith/vpx,mwgoldsmith/libvpx,stewnorriss/libvpx,jmvalin/aom,GrokImageCompression/aom,ittiamvpx/libvpx-1,openpeer/libvpx_new,felipebetancur/libvpx