Performance profiles (CPU Modes)

Do not build AutoParts (boot actions conflicts with the current ported implementations)

Patchset 2: Rebased

Require http://review.cyanogenmod.org/#/c/51190/

Change-Id: Id8e86e16519a6915a3ab929d7512f11171514679
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>