vp9-svc: Change default pattern for bypass mode
vp9-svc: Change default pattern for bypass mode

For sample encoder: keep default pattern for bypass
mode to example#0.

Change-Id: Icddc4600d750a23a44b26517a327b546fd8eb412

ShiftMediaProject/libvpx,webmproject/libvpx,webmproject/libvpx,webmproject/libvpx,ShiftMediaProject/libvpx,webmproject/libvpx,ShiftMediaProject/libvpx,webmproject/libvpx,webmproject/libvpx,ShiftMediaProject/libvpx,ShiftMediaProject/libvpx