msm: camera: Compat changes for generic buffer manager

Compat changes related to generic buf manager of camera.
This helps to handle functionalities like buffer get,
buffer put and buffer done.

Change-Id: Ied0cffbfb5545483c795efcdd069d9b6d8d550ad
Signed-off-by: Aditya Jonnalagadda <ajonnala@codeaurora.org>