Linux kernel is going to support ChaCha20-Poly1305 in TLS offload. Add support for this cipher. Reviewed by: jkim Obtained from: OpenSSL (3aa7212e0a4fd1533c8a28b8587dd8b022f3a66f) MFC after: 5 days Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D31439