fix name conversion issue for tls13 server entry

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index 016dfe1..10b07b7 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -950,7 +950,7 @@
 void mbedtls_ssl_handshake_wrapup( mbedtls_ssl_context *ssl );
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL)
 int mbedtls_ssl_tls13_handshake_client_step( mbedtls_ssl_context *ssl );
-int mbedtls_ssl_handshake_server_step_tls1_3( mbedtls_ssl_context *ssl );
+int mbedtls_ssl_tls13_handshake_server_step( mbedtls_ssl_context *ssl );
 #endif
 
 int mbedtls_ssl_send_fatal_handshake_failure( mbedtls_ssl_context *ssl );
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index c43f95e..3604192 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -5189,7 +5189,7 @@
     {
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL)
         if( mbedtls_ssl_conf_is_tls13_only( ssl->conf ) )
-            ret = mbedtls_ssl_handshake_server_step_tls1_3( ssl );
+            ret = mbedtls_ssl_tls13_handshake_server_step( ssl );
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL */
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
diff --git a/library/ssl_tls13_server.c b/library/ssl_tls13_server.c
index a567277..0dcd7ed 100644
--- a/library/ssl_tls13_server.c
+++ b/library/ssl_tls13_server.c
@@ -25,7 +25,7 @@
 
 #include "ssl_misc.h"
 
-int mbedtls_ssl_handshake_server_step_tls1_3( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_tls13_handshake_server_step( mbedtls_ssl_context *ssl )
 {
     ((void) ssl);
     return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );