[1/2] Base: Option to enable Notification Light when screen is on

This makes it possible to let the Notification LED flash even when the screen is on

Change-Id: I58be9646cdc84d4765342a5ab45b4641c3d5daba
Signed-off-by: anerik <anerikgames@gmail.com>

Conflicts:
	services/java/com/android/server/NotificationManagerService.java