update preseal based on pr comments

.gitignore

@@ -70,6 +70,10 @@ tools/keytools/x64
 tools/keytools/Debug
 tools/keytools/Release
 
+# preseal binary
+tools/preseal/preseal
+tools/preseal/preseal.exe
+
 # delta binaries
 tools/delta/bmdiff
 tools/delta/bmpatch

tools/preseal/preseal.c

@@ -1,3 +1,23 @@
+/* preseal.c
+ *
+ * Copyright (C) 2023 wolfSSL Inc.
+ *
+ * This file is part of wolfBoot.
+ *
+ * wolfBoot is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * wolfBoot is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
+ */
 #include <wolfssl/options.h>
 #include <wolfssl/wolfcrypt/settings.h>
 #include <wolfssl/wolfcrypt/ecc.h>