Add eCos-2.0 SPDX-License-Identifier to source files

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/Licenses/eCos-2.0.txt b/Licenses/eCos-2.0.txt
new file mode 100644
index 0000000..8a12e20
--- /dev/null
+++ b/Licenses/eCos-2.0.txt
@@ -0,0 +1,43 @@
+   Note that this license is not endorsed by the Free Software Foundation.
+   It is available here as a convenience to readers of [1]the license
+   list.
+
+The eCos license version 2.0
+
+   This file is part of eCos, the Embedded Configurable Operating System.
+   Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
+
+   eCos 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 or (at your option) any later
+   version.
+
+   eCos 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 eCos; if not, write to the Free Software Foundation, Inc., 51
+   Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+
+   As a special exception, if other files instantiate templates or use
+   macros or inline functions from this file, or you compile this file and
+   link it with other works to produce a work based on this file, this
+   file does not by itself cause the resulting work to be covered by the
+   GNU General Public License. However the source code for this file must
+   still be made available in accordance with section (3) of the GNU
+   General Public License.
+
+   This exception does not invalidate any other reasons why a work based
+   on this file might be covered by the GNU General Public License.
+
+   Alternative licenses for eCos may be arranged by contacting Red Hat,
+   Inc. at http://sources.redhat.com/ecos/ecos-license/
+   -------------------------------------------
+
+   ####ECOSGPLCOPYRIGHTEND####
+
+References
+
+   1. http://www.gnu.org/licenses/license-list.html