fix comments and function name issues

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index 32e2b16..53d50f2 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -986,7 +986,7 @@
     mbedtls_ssl_tls13_handshake_secrets tls13_hs_secrets;
 #if defined(MBEDTLS_SSL_EARLY_DATA)
     mbedtls_ssl_tls13_early_secrets tls13_early_secrets;
-    /** TLS 1.3 transform for 0-RTT application and handshake messages. */
+    /** TLS 1.3 transform for early data and handshake messages. */
     mbedtls_ssl_transform *transform_earlydata;
 #endif
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3 */