am f1b8f6bf: Merge "Refactor permission and state checking"

* commit 'f1b8f6bf93eaf677268342eccc1a1caf830d9fe9':
  Refactor permission and state checking
tree: cfb7a4a0e1d6f7ea2fdbe0bf8607dc37747662ec
  1. keystore/
  2. keystore-engine/
  3. softkeymaster/