Adapt functions names for ffdh

Signed-off-by: Przemek Stekiel <przemyslaw.stekiel@mobica.com>
diff --git a/library/ssl_tls13_server.c b/library/ssl_tls13_server.c
index ba64c32..a4db5dd 100644
--- a/library/ssl_tls13_server.c
+++ b/library/ssl_tls13_server.c
@@ -914,11 +914,11 @@
          * ECDHE and FFDHE groups are supported
          */
         if (mbedtls_ssl_tls13_named_group_is_ecdhe(group) ||
-            mbedtls_ssl_tls13_named_group_is_dhe(group)) {
+            mbedtls_ssl_tls13_named_group_is_ffdh(group)) {
             MBEDTLS_SSL_DEBUG_MSG(2, ("ECDH/FFDH group: %s (%04x)",
                                       mbedtls_ssl_named_group_to_str(group),
                                       group));
-            ret = mbedtls_ssl_tls13_read_public_ecdhe_share(
+            ret = mbedtls_ssl_tls13_read_public_dhe_share(
                 ssl, key_exchange - 2, key_exchange_len + 2);
             if (ret != 0) {
                 return ret;
@@ -1915,7 +1915,7 @@
 
 #if defined(PSA_WANT_ALG_ECDH) || defined(PSA_WANT_ALG_FFDH)
     if (mbedtls_ssl_tls13_named_group_is_ecdhe(named_group) ||
-        mbedtls_ssl_tls13_named_group_is_dhe(named_group)) {
+        mbedtls_ssl_tls13_named_group_is_ffdh(named_group)) {
         ret = mbedtls_ssl_tls13_generate_and_write_dh_key_exchange(
             ssl, named_group, buf, end, out_len);
         if (ret != 0) {