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_rng.h b/doxygen/input/doc_rng.h
index 0159ef3..0f212e0 100644
--- a/doxygen/input/doc_rng.h
+++ b/doxygen/input/doc_rng.h
@@ -1,6 +1,9 @@
/**
- * @file
- * Random number generator (RNG) module documentation file.
+ * \file doc_rng.h
+ *
+ * \brief Random number generator (RNG) module documentation file.
+ */
+/*
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0