defconfig: msm8916: Disable programming of secure IOMMUs

Linux kernel is programming all the SMMUs. However, the
programming of secure SMMUs should be done by the secure
environment. Disable programming of the secure SMMUs by
Linux kernel.

Change-Id: I4e212ebcbfaced9d3ab181ae10ffe66784e455be
Signed-off-by: Chintan Pandya <cpandya@codeaurora.org>