msm: camera: Add camera sync driver

Add the camera sync driver implementation which will
be used by user space and kernel space to synchronize
between themselves.

CRs-Fixed: 1108613
Change-Id: I2942b3f60dcbc2abd2b3ab606496c537ffb63597
Signed-off-by: Seemanta Dutta <seemanta@codeaurora.org>
8 files changed