rootdir: Set perms on interactive governor's min_sample_time

Change-Id: I75e9f424af731bdf1ca222eee2f4f18b20a6552b
rootdir: set perms on ondemand governor's up_threshold

Change-Id: I0a042a81be677821fa4099a3e19281d390dd27c3
Merge branch 'cm-10.1' of git://github.com/CyanogenMod/android_system_core into jb-mv