cameraservice: add api for pre-allocating stream buffers.

Much like the camera2 sdk CameraCaptureSession.prepare(Surface) call
this api will allow vendor clients to pre-allocate stream buffers.

Bug: 259735869

Test: build
Test: VtsAidlCameraServiceTargetTest

Change-Id: I2d03a55e470b909d1df5bd0cabcff7e850576f82
Signed-off-by: Jayant Chowdhary <jchowdhary@google.com>
5 files changed