iommu: msm: Don't read/write secure CB registers

Do not try to read from or write to secure registers that are
controlled by the secure environment.

Remove read of TTBR0 and read and write of ASID for context banks
that are locked down by the secure environment.

Change-Id: If1beb24e8c636ebf6e1dacd7fc127ff5dc1b0f2a
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
4 files changed