Fix frame buffer swap in denoiser
Fix frame buffer swap in denoiser

This commit fixes a bug in denoiser reference frame buffer swap,
which disables frame buffer update.

Change-Id: I39a9427180fd18f9692602064ad821f7af4714c0

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