Add optional retry parameter to EventFlag wait()
am: f542b5a838  -s ours

Change-Id: Iefb31ebe852d4df4b9be2984e92c558a6fa6cf70
tree: 2b219ef6cdb2dc9beffcfd5cb5b6e061cd42fd59
  1. benchmarks/
  2. include/
  3. tests/
  4. Android.bp
  5. EventFlag.cpp