Update torq's simpleperf implementation to always download simpleperf
scripts if built with bazel

- torq will soon move to Github, where bazel will be the build system
  that users use. As such, always download simpleperf's scripts when the
  build system is bazel instead of checking for an Android repo.
- Update validate simpleperf to verify the existence of all of
  simpleperf's scripts that are run by torq instead of just one.

Test: ./torq_test
Flag: EXEMPT refactor
Fixes: 433823065
Change-Id: Ic71bfd551e55135c87c684f652e440a111f1b8f6
4 files changed