Add CHANGES.md entry for SSL_set1_host()/SSL_add1_host() taking IP literals

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9201)

CHANGES.md

@@ -23,6 +23,11 @@ OpenSSL 3.0
 
 ### Changes between 1.1.1 and 3.0 [xx XXX xxxx]
 
+ * Allow SSL_set1_host() and SSL_add1_host() to take IP literal addresses
+   as well as actual hostnames.
+
+   *David Woodhouse*
+
  * The 'MinProtocol' and 'MaxProtocol' configuration commands now silently
    ignore TLS protocol version bounds when configuring DTLS-based contexts, and
    conversely, silently ignore DTLS protocol version bounds when configuring