root: Updates from caf/stock 4.4.3

Change-Id: Ia1c151944bf0422b8be0f763de9ba3cad7d1c0d5
overlay: Update power_profile from stock 4.4.3

Change-Id: I50f525ed34ef916b22e66a553f119389b98a5b1d
power: Enable CPU boost hint

Change-Id: I6363a23c2540f8212abed8d5a823c822b3d39aec