Changeset 10622:345a3550fbeb
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arm: Add stats to table walker

This patch adds table walker stats for:
- Walk events
- Instruction vs Data
- Page size histogram
- Wait time and service time histograms
- Pending requests histogram (per cycle) - measures dist. of L
  (p(1..) = how often busy, p(0) = how often idle)
- Squashes, before starting and after completion