cpuidle/ladder: add per cpu pm_qos_resume_latency consideration

Kernel or user may have special requirement on cpu response time, like
if a interrupt is pinned to a cpu, we don't want the cpu goes to deep
sleep. This patch can prevent this thing happen by consider per cpu
resume_latency setting in cpu sleep state selection in laddr governor.

Signed-off-by: Alex Shi <alex.shi@linaro.org>
1 file changed