msm: camera: Add support for active deactive feature

Add CONFIG transition state for Imagesensor and Flash submodule.
Also, add main flash fire support to INIT packet. This change allow
submit real time requests issued before streamon to request manager
and able to fire the main flash before streamon.

Change-Id: If03c4968e947e93277041e0ff066e73f090906f7
Signed-off-by: Jigarkumar Zala <jzala@codeaurora.org>