Camera: Add new set video format/dataspace command

This allows the video encoding subsystem inform the camera what format
and dataspace should be used for metadata-mode buffers.

This is necessary to allow software encoders and other generic
consumers that cannot interpret
HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED buffers.

Bug: 13222807
Change-Id: I01090dc4dce11f075f7d3cd86daca5ecf3d9e995