am a9e8720: AI 147655: CTS: add test cases for android.app.KeyguardManag

Merge commit 'a9e8720929c3d7978b2768319a9a6eea53233b4f' into donut

* commit 'a9e8720929c3d7978b2768319a9a6eea53233b4f':
  AI 147655: CTS: add test cases for android.app.KeyguardManager
tree: daf05bfcc5e3b12bafd0b96198257839d01b2f05
  1. tests/
  2. tools/
  3. Android.mk