Integrate this leaf with CPU policy handling, to leverage the host policy when feature bits need evaluating.
1: cpu-policy: define bits of leaf 6 2: replace APERRMPERF synthetic feature bit 3: rename ARAT feature flag 4: Intel: use host CPU policy for ARAT checking 5: cpufreq: use host CPU policy for Turbo checking 6: cpufreq: use host CPU policy in HWP driver Jan
