Merge changes I8fd41da0,I9a7ad445,I4e15cd4f,I896cfe8c,I5d80887a, ... into pi-dev

Merge changes I8fd41da0,I9a7ad445,I4e15cd4f,I896cfe8c,I5d80887a, ... into pi-dev

* changes:
  Perfprofd: Minor fixes
  Perfprofd: Add string-based binder interface
  Perfprofd: Add ScopeGuard for file deletion
  Perfprofd: Fix binder interface
  Perfprofd: Use the right parameter
  Perfprofd: Expose more parameters in the simple binder interface
  Perfprofd: Add process to configreader
  Perfprofd: More scripts
  Perfprofd: Separate symbol offset in samples
  Perfprofd: Add parallel processing to stack script
  Perfprofd: Update perf_proto_stack