Ed25519: Indicate Android Keystore supports it

Indicate Android Keystore supports Ed25519, to fix libcore.java.security.ProviderTest.

Bug: 232369345
Test: atest libcore.java.security.ProviderTest#test_Provider_getServices
Ignore-AOSP-First: Fixing a failure on tm-dev, which no longer merges from aosp-master
Change-Id: I5bf85529f75f63113c86437ee21dc1927036099f
1 file changed