iommu: msm: Add attached/detached call

The Performance Monitor Unit (PMU) driver requires that at least one
context is attached to an IOMMU before the PMU can be used. Add
callbacks to the PM driver from the iommu attach and detach functions
for secure iommu also.

Change-Id: Iaf58d46e5dc0d3a35a42cdca9c82b1e6b772840a
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
1 file changed