First pass at generic hardware tunables support

With support for vibrator intensity and kcal

Change-Id: Ice3444b31a9ab0a25cf25bebb18351e2c08a70c3

Conflicts:
	AndroidManifest.xml
	res/values/cm_strings.xml
	res/xml/display_settings.xml
	res/xml/sound_settings.xml
	src/com/android/settings/DisplaySettings.java
	src/com/android/settings/SoundSettings.java