disp: msm: sde: add dim layer check during secure transition

If no planes are staged during non-secure to secure transition,
dim layer should be staged at the highest blend stage. Add
check to fail those commits where dim layer is not staged
in such scenarios.

Change-Id: Ifd49b00a8ff64547ea12751f6c765fd12e55629e
Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>