Keyguard: do not show maximized on simpin and several fixes

- to show a maximzed widget container on first boot when simpin
  or puk is requested does not make any sense. In this case
  show it as normal view
- fix sometimes unresponsive unlock handle on maximized widgets
  and bring it to front (happened only in combination with
  lock before unlock)
- a bit codecleanup and centralize
- fix animation was visible on screnn turn on. Now it is directly
  maximized visible

Change-Id: Id4dce13efee29ce44def60b4de9200a4680e2007
Fix for Lock before unlock (read description)
- Using lock before unlock combined with patterm pin or password when try to unlock using any app or activity instead of normal lock (padlock shortcut) the unlock process only work if we enter the method two times and not in first attempt.

Change-Id: I60c0ec22d7b0278fd0e3b69c42fad6e2afdd5b92