Merge branch 'pm-cpufreq'

* pm-cpufreq:
  cpufreq: Select PM_OPP rather than depending on it
  cpufreq: Make ARM big.LITTLE switcher depend on ARM
  intel_pstate: Remove periodic P state boost
  intel_pstate: Add setting voltage value for baytrail P states.
  cpufreq: SPEAr: clk_round_rate() can return a zero upon error
  cpufreq: cpufreq-cpu0: clk_round_rate() can return a zero upon error