Add device ID attestation method to keymaster
am: 5aa93e08a8

Change-Id: Iad6a90d90b3f785a090085404eecd2f5abfe60b4
tree: 0f08100ed68a4cce283a45c0379e7f61825415e8
  1. keystore/
  2. keystore-engine/
  3. softkeymaster/
  4. MODULE_LICENSE_APACHE2
  5. NOTICE