Remove public api mbedtls_ssl_reset_hostname()

Signed-off-by: Xiaokang Qian <xiaokang.qian@arm.com>
diff --git a/programs/ssl/ssl_client2.c b/programs/ssl/ssl_client2.c
index a7705ac..9102ab4 100644
--- a/programs/ssl/ssl_client2.c
+++ b/programs/ssl/ssl_client2.c
@@ -3119,10 +3119,10 @@
         }
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
-        if( ( ret = mbedtls_ssl_reset_hostname( &ssl, opt.server_name,
+        if( ( ret = mbedtls_ssl_set_hostname( &ssl,
                                                 opt.reco_server_name ) ) != 0 )
         {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_reset_hostname returned %d\n\n",
+            mbedtls_printf( " failed\n  ! mbedtls_ssl_set_hostname returned %d\n\n",
                             ret );
             goto exit;
         }