Revert "Revert "Use eBPF-based time-in-state monitoring for groups of threads""

This reverts commit c9e90583.

This is the original CL, unchanged. The test that was the reason for
the rollback now passes, see http://go/forrest-run/L29200000799760670

The reason for the test failure was that Cuttlefish does not
define any CPU frequencies, which caused https://android.googlesource.com/platform/frameworks/native/+/refs/changes/65/1558465/2/libs/cputimeinstate/cputimeinstate.cpp#578
to fall into a near-infinite loop, thus locking up BatteryStats.

The no-frequencies issue was addressed in https://r.android.com/1558465.

Reason for revert: rolling forward since the test failure has been addressed

Bug: 169279846
Change-Id: I537561b4c86ef2aaf236b1807b844855fef38f8b
(cherry picked from commit 4a7792b3)
Merged-In: I537561b4c86ef2aaf236b1807b844855fef38f8b