Settings: Show clock enabled/disabled status summary in status bar settings

Change-Id: Iee63538fe695ec1df50841b157f67f3efa0b22df

Conflicts:
	src/com/android/settings/slim/StatusBar.java
Move Blacklist to Privacy
Based on the commit by CyanogenMod: https://github.com/CyanogenMod/android_packages_apps_Settings/commit/1a15aa15f0a2676cc6193cdc48cf1f795ffe2ee1