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: I9ba5d8f9537c68d3590826eb8d1483a02cfe3266
(cherry picked from commit 56c5869727feadc1e2213a23f71fb1878b659510)
frameworks/base: remove some duplicate ringtones/notification sounds

PS2: Start mk file cleanup
PS3: Remove empty mk files
PS4: Remove more dupes and unused audio

Change-Id: I7a091218e41b3cf7eea9738d9ea569d9cb3ee91d

Patchset: 4
http://review.cyanogenmod.org/#/c/55407/
(cherry picked from commit 22cf4286df5918230c07a5dbb2b489eb7b9754c1)