libpayload: Rename PDCurses-3.4 to PDCurses

Change-Id: If881ec130833c7e7e62caa3d31e350a531f5bc8e
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/12398
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

payloads/libpayload/curses/PDCurses/README

@@ -0,0 +1,48 @@
+Welcome to PDCurses!
+====================
+
+Public Domain Curses, aka PDCurses, is an implementation of X/Open 
+curses for multiple platforms. The latest version can be found at:
+
+   http://pdcurses.sourceforge.net/
+
+For changes, see the HISTORY file.
+
+
+Legal Stuff
+-----------
+
+The core package is in the public domain, but small portions of PDCurses 
+are subject to copyright under various licenses.  Each directory 
+contains a README file, with a section titled "Distribution Status" 
+which describes the status of the files in that directory.
+
+If you use PDCurses in an application, an acknowledgement would be 
+appreciated, but is not mandatory. If you make corrections or 
+enhancements to PDCurses, please forward them to the current maintainer 
+for the benefit of other users.
+
+This software is provided AS IS with NO WARRANTY whatsoever.
+
+
+Ports
+-----
+
+PDCurses has been ported to DOS, OS/2, Win32, X11 and SDL. A directory 
+containing the port-specific source files exists for each of these 
+platforms. Build instructions are in the README file for each platform.
+
+
+Distribution Status
+-------------------
+
+All files in this directory except configure, config.guess and 
+config.sub are released to the Public Domain. config.guess and 
+config.sub are under the GPL; configure is under a free license 
+described within it.
+
+
+Maintainer
+----------
+
+William McBrine <wmcbrine@users.sf.net>