Camera3: Reduce the max inflight requests to 4.
Camera3: Reduce the max inflight requests to 4.

This helps reduce latency as long as metadata reporting delay is 1.

Bug: 10712902
Bug: 10570497
Change-Id: If2ba7e947a4f31dae0598bab6862bb95613e4767

maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead