Update git submodules

* Update external/perfetto from branch 'master'
  to f52572f002a6909b7f6f19c29af5301b8cffe65c
  - Add noop rule to BUILD to import init file correctly on g3
    
    Change-Id: I32d8f228891a5189fcf8c4926f7d82d949685057
    
1 file changed