DateView: Use Intent.ACTION_LOCALE_CHANGED to refresh notification bar clock

Add the Intent.ACTION_LOCALE_CHANGED to DateView BroadcastReceiver for detect when the
user change the locale. Otherwise, the notification bar clock is not refreshed until
the next tick or time changed occurs.

Change-Id: Ic8830fbabf24b62b60a6d3babe5e211f14948d08
Merge "DateView: Use Intent.ACTION_LOCALE_CHANGED to refresh notification bar clock" into jb42