msm: camera: Add common sensor functionality

Add utilities and common functionalities for
camera sensor and its associated modules.

CRs-Fixed: 2015567
Change-Id: If2547f6272a1c4c3b87ad8760f82a8778defca40
Signed-off-by: Viswanadha Raju Thotakura <viswanad@codeaurora.org>