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/pdcurses/README

@@ -0,0 +1,25 @@
+PDCurses Portable Core
+======================
+
+This directory contains core PDCurses source code files common to all 
+platforms.
+
+
+Building
+--------
+
+These modules are built by the platform-specific makefiles, in the 
+platform directories.
+
+
+Distribution Status
+-------------------
+
+The files in this directory are released to the Public Domain.
+
+
+Acknowledgements
+----------------
+
+The panel library was originally provided by
+Warren Tucker <wht@n4hgf.mt-park.ga.us>