Disable excessive dalvik debug messages

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I87b457b9b529fa77f9c0ed6bc7c8e1c0287d9999
power: Tuning and cleanups

 * Tune the governor for better power usage and interactivity
 * Reset tuning parameters if governor changes
 * Cleanup

Change-Id: I56f5dcc7f15e5dfbcc38338d515fd41d04662ab1
power: Manage io_is_busy for interactive governor

Change-Id: I4591c7fb5c56353ff80c044f4c173216a9c29c1f