bpfprogs: Add a time_in_state program am: c5c05168c8 am: d9f987b07e
am: 701389c36c

Change-Id: I19f93019f4d34ca9da8d3ce1d59093264d874012
tree: caa6100ad79042b5c4046881d35ab80c8dfcc5bb
  1. .clang-format
  2. Android.bp
  3. helpers.h
  4. time_in_state.c