Exclude timed power entities due to timeout mechanism

The AoC power stats reporting might not be present when the
AoC latency exceeds the allowed time after the timeout mechanism
introduced in AoC state residency data provider.

Bug: 229696611
Test: run vts -m VtsHalPowerStatsTargetTest
Change-Id: I7c59ab50065961ed338314d6c8d22d41ece43e5f
Signed-off-by: Darren Hsu <darrenhsu@google.com>