[PATCH v2 6/6] perf sched timehist: Show callchains for idle stat

When --idle-hist option is used with --summary, it now shows idle stats with callchains like below: Idle stats by callchain: CPU 0: 902.195 msec Idle time (msec) Count Callchains --

[PATCH v2 6/6] perf sched timehist: Show callchains for idle stat

When --idle-hist option is used with --summary, it now shows idle stats with callchains like below: Idle stats by callchain: CPU 0: 902.195 msec Idle time (msec) Count Callchains --