Camera: Add partialResult quirk metadata fields

To be used by HALs to split up capture results into
multiple batches.

Bug: 11115603

Change-Id: I5cfc26b2812f9bf4613944c0679e0e29cfd43616
Camera: Make partialResult quirk fields hidden, not system.

Bug: 11115603
Change-Id: I39c51f0a7655736ff216143ece951102930af93c