jf: tweak performance profiles

* when changing profiles, cpu governor defaults are reapplied

* if we want to tune defaults, we need to apply on profile change

* conservative isnt very conservative

* interactive spends unnecessary time in 1134000

* ps7: bring all cores online to set governor

Change-Id: Ic6edaa57bd9dd047fb5b094807ad7d6330434612
Merge "jf: tweak performance profiles" into cm-11.0