msm: camera: cpp: Changes to support batch mode

Support batch processing of buffers in CPP hardware.
Changes to parse through multiple buffers for CPP output.
Buffer manager will provide list of individual buffer index
via buf info struct, CPP driver will parse through all the
individual buffers to configure CPP firmware.

Change-Id: If780d32aee68960e392a9f4a0ba6fb1b3ddb6358
Signed-off-by: Sagar Gore <sgore@codeaurora.org>