Don't pulse LED on new notification unless notification has LED flag set

Bug: 6006131

Change-Id: I719c7d68e310bfaca227f6286159b3993784926b
Signed-off-by: Mike Lockwood <lockwood@google.com>

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

@@ -767,7 +767,9 @@ public class NotificationManagerService extends INotificationManager.Stub
                     long identity = Binder.clearCallingIdentity();
                     try {
                         r.statusBarKey = mStatusBar.addNotification(n);
-                        mAttentionLight.pulse();
+                        if ((n.notification.flags & Notification.FLAG_SHOW_LIGHTS) != 0) {
+                            mAttentionLight.pulse();
+                        }
                     }
                     finally {
                         Binder.restoreCallingIdentity(identity);