stagefright: connect color aspects and surface dataspace

1. Keep configuration format as video decoder and encoder will need
it to reset their default color aspects on mode/size change.

2. Separate color aspect handling for decoder and encoder as they
are quite different. Update decoder and encoder color aspect setting
to latest policy.

3. propagate dataspace to GraphicBufferSource, MediaCodecSource,
CameraSource and SoftwareRenderer

Bug: 25684127
Change-Id: Ie9a7528af36ed44605a7ce3e69b5794ef16b1c66