msm: kgsl: Program SMMU aperture only if tz support

SMMU aperture programming is done by clients as per
the newer tz model. In legacy tz model aperture
programming is handled by tz itself and clients
dont have to do it explicitly.

Before making a scm call make sure to check if tz
support aperture programming by clients.

Change-Id: I72558d4c13b4c8d72d9c7e8721711ffb383e8983
Signed-off-by: Sunil Khatri <sunilkh@codeaurora.org>