Keyguard: fix not shown overlay widgets from system

google derp....due that if widgets are disabled current AOSP
code just add the default widget. Then checkAppWidgetConsistency()
detects a widget which was added and the complete method is non op.
Whatever lets handle the whole process over checkAppWidgetConsistency()
on widget disabled it tries to bind the default widget over overlay if
this is without sucess it falls back to the system one.
Safemode falls always to the system one

This fixes as well an issue that the saved default id in LockPatternUtils
is not reseted back to default if all widgets were deleted from the user.
Based on an old patch from danesh. Thanks for the
suggestion

Change-Id: Ic8543e0b5e83114e57942225935870f45deda97e
Include android.permission.ACCESS_SUPERUSER permission in the base API

Since we don't include this version of the su binary we need to
register this permission other wise if user installs Koush's Superuser
apk later all apps previously installed will not be granted
superuser permission as it, the permission, did not exist when apk
previously asked for permissions

This is a hack to avoid Android Issue 25906
 (https://code.google.com/p/android/issues/detail?id=25906)

Change-Id: I4bc044fa8808d7e11e8cc004f680a99d11d9b66d
Merge changes I4bc044fa,Ic8543e0b into kk44

* changes:
  Include android.permission.ACCESS_SUPERUSER permission in the base API
  Keyguard: fix not shown overlay widgets from system