Merge "KeyMint: fix auth test HAT" into main

    ASSERT_GT(dodgy_hat->mac.size(), 0);

    dodgy_hat->mac[0] ^= 0x01;

    EXPECT_EQ(ErrorCode::KEY_USER_NOT_AUTHENTICATED,

              Finish(message, {} /* signature */, &ciphertext, hat.value()));

              Finish(message, {} /* signature */, &ciphertext, dodgy_hat.value()));

}

// Test use of a key that requires an auth token for each action on the operation, with