am ec66e579: Merge "Perf support for ARMv8 Aarch64"

* commit 'ec66e579a71e2a8177330f833fb0ad722055839c':
  Perf support for ARMv8 Aarch64
tree: 2358cb39a884d151d0e239b565af8b8eba1b8558
  1. perf-3.12.0/
  2. Android.mk
  3. CleanSpec.mk