am 4eaae5cc: am d5d811e4: Merge "keystore: allow system to clear keys even while encrypted"

* commit '4eaae5cce28a6e06e25427b2e0a5b156bfafeade':
  keystore: allow system to clear keys even while encrypted
tree: 10d2fae2245e3aef8136513f8b6f4e12cd8664d6
  1. keystore/
  2. keystore-engine/
  3. softkeymaster/