fw/target: add sched_features to TargetInfo
fw/target: add sched_features to TargetInfo

Attempt to read scheduler features (debugfs might not be mounted) and
add them to TargetInfo.

setrofim/workload-automation,setrofim/workload-automation,lisatn/workload-automation,setrofim/workload-automation,ARM-software/workload-automation,lisatn/workload-automation,ARM-software/workload-automation,setrofim/workload-automation,lisatn/workload-automation,ARM-software/workload-automation,lisatn/workload-automation,ARM-software/workload-automation