Fix algorithm name passed to key class constructor for "EdDSA" Ed25519 keys.

Both the Ed25519 OID and "EdDSA" are accepted as valid algorithm names
for Ed25519 keys as of ag/35367814. The algorithm name should match
what's passed to the AndroidKeyStoreEdECPublicKey constructor.

Bug: 430870763
Flag: EXEMPT BUGFIX
Test: atest CtsKeyStoreTestCases:android.keystore.cts.Curve25519Test
Test: atest CtsKeyStoreTestCases:android.keystore.cts.KeyAttestationTest
Change-Id: I83c80066479d64b3b1fb799828886d4571b44727