Implement key_parameter conversion from/to rusqlite storage.

This implements conversion methods on top of basic
keyparameter implementation in aosp/1350725

Bug: 159722691, 159723797, 161798431
Test: atest --host keystore2_tests.
Change-Id: I1457ae4cf4336ebc5bff2645bca55ad285a4449c
6 files changed