am 27c27b70: am 931fac09: keystore: fully reset user keystore on request

* commit '27c27b708672c125b61e1733be304c9826560151':
tree: 10d2fae2245e3aef8136513f8b6f4e12cd8664d6
  1. keystore/
  2. keystore-engine/
  3. softkeymaster/