iommu: msm: Read PMU configuration from DT

The Performance Monitor Unit (PMU) configuration (such as number of
performance monitor groups and number of counters) is not accurately
reflected in the registers of the PMU. Instead, store configuration in
device tree and read it from there when configuring the iommu driver.

Change-Id: I827d6a81a4dc4fef3c32b3d4957322b67f46c792
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
4 files changed