arm64: dts: qcom: sa8775p: add the PMU node
JIRA: https://issues.redhat.com/browse/RHEL-1730
Add the PMU node to the sa8775p device tree. This will allow the analysis of performance metrics such as cache-references, cache-misses, bus-cycles, etc.
Signed-off-by: Lucas Karpinski lkarpins@redhat.com