Merge "system/security: remove BORINGSSL_201509 support." am: d8feb9b2ba
am: 54a201ef00

* commit '54a201ef00b9b5d6b58b34b2429a08a98d37d7e9':
  system/security: remove BORINGSSL_201509 support.
tree: 92098c6f8977a9b73a07aa2ca4a9840e932a7ce7
  1. keystore/
  2. keystore-engine/
  3. softkeymaster/