time_in_state: Use common BPF helper
am: 4134dbbc31

Change-Id: I68f8ae096dead39624c1d194852481e8dc24a9a5
tree: c5dbe7518f9c8b0e72293c592dfc29cddea2ee51
  1. test/
  2. Android.bp
  3. time_in_state.c