sched: Add ftrace events for entity load-tracking

Adds ftrace events for key variables related to the entity
load-tracking to help debugging scheduler behaviour. Allows tracing
of load contribution and runqueue residency ratio for both entities
and runqueues as well as entity CPU usage ratio.

Signed-off-by: Morten Rasmussen <Morten.Rasmussen@arm.com>
2 files changed