vpx_temporal_svc_encoder: Update some default settings.
vpx_temporal_svc_encoder: Update some default settings.

Set flags=0 if layering_mode=0, and set static_thresh=1.

Change-Id: Id9874923b23966a2b1d0e83965add7d5c9d26d16

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