Revert "sched: better settings"

This reverts commit c2e5370776e67f93da0761cfd261254b8296fb8b.
kernel: sched_features: use standard settings with ARCH power
omap: cpuidle: reconfigure idle params
defconfig: enable SCHED_SMT again
omap: some corrections, small fixes, etc..
cpufreq: copy policy to sibling cpu on resume