iommu: msm: Create secure page tables for SMMUv2 also

Secure page tables for SMMUs only look up for SMMUv1. Support
SMMUv2 also.

Change-Id: I802b7e3b8da8311c8f501ea939f66bd48f5649fd
Signed-off-by: Chintan Pandya <cpandya@codeaurora.org>