Add optional additional entropy to finish

If provided the extra entropy will be added to the device before calling
finish. If entropy is provided and the device does not support supplying
additional entropy then finish will fail with KM_ERROR_UNIMPLEMENTED.

Change-Id: If26be118bf382604f6f8e96e833b76e6f9e94d58
3 files changed
tree: ba7ebfa168ff7dec337dd0bd178d1c7361be4107
  1. keystore-engine/
  2. keystore/
  3. softkeymaster/