Merge "Add simpleperf collector for collecting simpleperf samples." into rvc-dev am: 739b3caa6d am: cec00c1e6f

Original change: https://googleplex-android-review.googlesource.com/c/platform/platform_testing/+/12211742

Change-Id: I118446b4beb21ac4f4a46fa4841cb6748394b28b
tree: c8b61c06d35e6c6f3929da084bd3ba19af14ff7d
  1. build/
  2. docs/
  3. emu_test/
  4. libraries/
  5. scripts/
  6. tests/
  7. utils/
  8. PREUPLOAD.cfg