defconfig: disable cleancache
drivers: misc: battery_friend: Added new dynamic userspace interface for mpu frequency control

Battery Friend now controls the mpu frequencies dynamically. It overrides the common values for:

- Screen On Min Freq
- Screen Off Max Fre
- Min Freq
- Max Freq

Only when Battery Friend is enabled. This gives users the abbility to 'switch' between settings, similar to profiles. Keep in mind that this only affects SUSPEND MODE.