KeyMint VTS: x25519 pubkey as SubjectPublicKeyInfo

The data for a key agreement operation should always send in the
SubjectPublicKeyInfo structure, not a raw key for X25519.

Test: VtsAidlKeyMintTargetTest
Bug: 231959070
Change-Id: Ib5157da6a986d957162fab60dbe927017cfdd703
Merged-In: Ib5157da6a986d957162fab60dbe927017cfdd703
1 file changed