Camera: Switch to query function for display sync

The query function has the benefit of:
- Simpler code
- No need to use ndk, thus reduce size of cameraserver process
- Better latency compared to callbacks

The additional inflight preview buffers are still necessary so that
producer doesn't get starved.

Test: GoogleCamera app video mode preview, OpenCamera
Test: Camera CTS
Bug: 221499182
Change-Id: I8de42e5747afca79e85841705b9296de0fd668c7