Camera: Enable batching for constrained high speed recording

For each constrained high speed recording request list, only 1 shutter
notify and 1 capture result are sent from cameraserver to application
process as a power-saving measure.

Once the shutter notify and capture result are passed into application
process, derive individual shutter and result for other requests in the
batch, and send them to application.

Test: Manually test high speed recording with GCA and CTS.
Bug: 35775704
Change-Id: Ie5fa1de6b3b87f1242d6c81770e40ae876991bc3