Add XChaCha20Poly1305 protos to Java BUILD rules.
Add XChaCha20Poly1305 protos to Java BUILD rules.

PiperOrigin-RevId: 212540097
GitOrigin-RevId: c828f4b5ea41bddd29b4d41032cda12dc785092b

google/tink,google/tink,google/tink,google/tink,google/tink,google/tink,google/tink,google/tink