drm/msm/sde: manage secure and non-secure transition in sde

This change adds support to perform secure transition required
for handling secure ui and secure camera use cases. With this
change kms queries the crtc for the operations to be performed
to move between the secure states

CRs-Fixed: 2064272
Change-Id: Id1a22a0fbd1ed95c8762732103488a11d11ecfc1
Signed-off-by: Abhijit Kulkarni <kabhijit@codeaurora.org>