CCodec: Episode VI --- Set Persistent Surface

- Implement CCodec::setInputSurface().
- Introduce InputSurfaceWrapper to handle both IInputSurface and
  IGraphicBufferProducer.
- Create C2OMXNode to wrap codec 2.0 component in IOMXNode, so that
  it can be used in IGraphicBufferPrdoucer::configure().

Test: setprop debug.stagefright.ccodec yes
Test: screenrecord --codec-name c2.google.avc.encoder /sdcard/record.mp4
Test: screenrecord --persistent-surface --codec-name c2.google.avc.encoder /sdcard/record.mp4
Change-Id: I7ea9f150ae06996f03a78645d6e748d265b975df