Use SoftKeymasterDevice::keymaster_device rather than casting.

Also document that SoftKeymasterDevice should not be freed.

Change-Id: I027f137b0ffd474bb4b429691fe87eef6338b723
1 file changed
tree: 06da612c2f053fc642a775326f4d4c8d4b096377
  1. keystore/
  2. keystore-engine/
  3. softkeymaster/