Use eBPF-based time-in-state monitoring for groups of threads am: 9e581d5999

Original change: https://android-review.googlesource.com/c/platform/system/bpfprogs/+/1505077

Change-Id: I4f25f1cd2302ccd56c4ee3ac1e8f8c1828f0a3a6
tree: 420ff3c9f4b94985dc4fe93c11caa2235001bdf6
  1. test/
  2. Android.bp
  3. time_in_state.c