Camera: Allow out-of-order ZSL shutter notify

- Allow shutter notifies of zero-shutter-lag requests with STILL_CAPTURE
intent to be out of order compared to other kinds of requests.
- Shutter notifies of same kind of requests must be in order.

Test: BurstJpegCapture CTS test
Bug: 120604717
Change-Id: Ia31f0d17322cb9b850614413feb1134e16d69552
2 files changed