ueventd: Add rules for governors and cpufreq

This change requires a kernel patch in cpufreq to work.

Change-Id: I6281645291ca4516748f65d0799e14971c5fb2ea
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_system_core into kitkat
Merge pull request #2 from AOSPA-legacy/kitkat

merge from AOSPA-legacy