vp9_spatial_svc_encoder: Add encoding time log.
vp9_spatial_svc_encoder: Add encoding time log.

Change-Id: Iab4e4a13a65c9dc5314e5107b126c30667c7b448

ShiftMediaProject/libvpx,felipebetancur/libvpx,ittiamvpx/libvpx-1,VTCSecureLLC/libvpx,ShiftMediaProject/libvpx,mwgoldsmith/vpx,shacklettbp/aom,zofuthan/libvpx,webmproject/libvpx,ShiftMediaProject/libvpx,mwgoldsmith/libvpx,ittiamvpx/libvpx-1,shacklettbp/aom,felipebetancur/libvpx,Topopiccione/libvpx,mwgoldsmith/libvpx,webmproject/libvpx,zofuthan/libvpx,mbebenita/aom,webmproject/libvpx,Topopiccione/libvpx,zofuthan/libvpx,luctrudeau/aom,mbebenita/aom,openpeer/libvpx_new,thdav/aom,liqianggao/libvpx,GrokImageCompression/aom,GrokImageCompression/aom,smarter/aom,mbebenita/aom,liqianggao/libvpx,smarter/aom,felipebetancur/libvpx,mwgoldsmith/vpx,felipebetancur/libvpx,VTCSecureLLC/libvpx,thdav/aom,ShiftMediaProject/libvpx,mwgoldsmith/libvpx,mwgoldsmith/vpx,jmvalin/aom,VTCSecureLLC/libvpx,mbebenita/aom,shacklettbp/aom,luctrudeau/aom,smarter/aom,liqianggao/libvpx,Topopiccione/libvpx,VTCSecureLLC/libvpx,GrokImageCompression/aom,Topopiccione/libvpx,mwgoldsmith/vpx,GrokImageCompression/aom,GrokImageCompression/aom,jmvalin/aom,mwgoldsmith/vpx,VTCSecureLLC/libvpx,openpeer/libvpx_new,openpeer/libvpx_new,jmvalin/aom,openpeer/libvpx_new,zofuthan/libvpx,luctrudeau/aom,felipebetancur/libvpx,smarter/aom,mbebenita/aom,luctrudeau/aom,mwgoldsmith/vpx,thdav/aom,Topopiccione/libvpx,mbebenita/aom,thdav/aom,jmvalin/aom,webmproject/libvpx,ittiamvpx/libvpx-1,luctrudeau/aom,webmproject/libvpx,zofuthan/libvpx,VTCSecureLLC/libvpx,openpeer/libvpx_new,shacklettbp/aom,liqianggao/libvpx,mbebenita/aom,GrokImageCompression/aom,ittiamvpx/libvpx-1,Topopiccione/libvpx,smarter/aom,liqianggao/libvpx,openpeer/libvpx_new,thdav/aom,webmproject/libvpx,mwgoldsmith/libvpx,mwgoldsmith/libvpx,shacklettbp/aom,jmvalin/aom,liqianggao/libvpx,jmvalin/aom,mbebenita/aom,thdav/aom,ittiamvpx/libvpx-1,shacklettbp/aom,ittiamvpx/libvpx-1,luctrudeau/aom,felipebetancur/libvpx,zofuthan/libvpx,ShiftMediaProject/libvpx,smarter/aom,mwgoldsmith/libvpx,mbebenita/aom