Adding tests to update cert-chain or public key of the non existing
keystore entry using `updateSubcomponent` API.

1. Try to update only the certificate-chain of the non existing
   asymmetric key, test should succeed in creating a new keystore
   entry with the given certificate-chain only.

2. Try to update only the public key of the non existing asymmetric
   key, test should fail to update non-existing key certificate with
   error response `KEY_NOT_FOUND`.

Bug: 267183713
Test: atest keystore2_client_tests
Change-Id: Iaf5c9b0e29eb59873493b330c0f1d36ec8337f88
1 file changed