tree ed1e9f43dc0e64ff38693d4226845482260c4f3e
parent 0c175e28e5ca9b8056ab94c2281fa1354843e1c3
author Shaquille Johnson <ssjohnson@google.com> 1697034595 +0100
committer Shaquille Johnson <ssjohnson@google.com> 1697624168 +0100

biometric: Add nullable to api for crypto

The javadocs mention that the functions getMac(), getKeyAgreement,
getCipher() can return nullable but this isn't show in the API.
Updating these to reflect that

Bug: 304697130
Test: atest FrameworksCoreTests
Change-Id: Icda5a087775174517abca7b4d1078a6ea0719170