iommu: msm: Only program registers once

Certain operations need to be performed only once per
IOMMU. Ensure that this is the case for both secure and non-secure
IOMMUs.

Change-Id: If16220fc5807a55daadd1c5e13a1117148445e0c
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
3 files changed