doxygen: Remove copyright block from Doxygen comments
Remove the copyright block from the Doxygen comments, to clean up the
detailed description in the generated Doxygen output. Also, add \file and
\brief tags to all headers in doxygen/input.
diff --git a/doxygen/input/doc_x509.h b/doxygen/input/doc_x509.h
index 315f0e3..9b52569 100644
--- a/doxygen/input/doc_x509.h
+++ b/doxygen/input/doc_x509.h
@@ -1,6 +1,9 @@
/**
- * @file
- * X.509 module documentation file.
+ * \file doc_x509.h
+ *
+ * \brief X.509 module documentation file.
+ */
+/*
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
