Merge changes Icf6bf600,I7f0fc3be,Idda1a5f8,I51af46e0 into msm-4.14

* changes:
  sched: Use efficiency values from device tree
  ANDROID: Move energy model init call into arch_topology driver
  ANDROID: Streamline sched_domain_energy_f functions
  ANDROID: Separate cpu_scale and energy model setup