Allow ChaCha20-Poly1305 in DTLS
Allow ChaCha20-Poly1305 in DTLS

GCM and CCM are modes of operation for block ciphers only. ChaCha20-Poly1305
operates in neither of them but it is AEAD. This change also enables future
AEAD ciphers to be available for use with DTLS.

Signed-off-by: Rich Salz <c04971a99e5a9ee80eaab4b1deb37e845b0bd697@akamai.com>
Reviewed-by: Matt Caswell <1fa2ef4755a9226cb9a0a4840bd89b158ac71391@openssl.org>

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl