msm: camera: Enable Support for secure camera

This patch enables the support for secure camera
feature. Secure camera lets trusted apps in user space
stream camera frames for various security applications.

Change-Id: Ia2204d2d62cef2764c106f57f64fac2981b27b94
Signed-off-by: Seemanta Dutta <seemanta@codeaurora.org>
Signed-off-by: Lakshmi Narayana Kalavala <lkalaval@codeaurora.org>
Signed-off-by: Soundrapandian Jeyaprakash <jsoundra@codeaurora.org>