charcell LCD simulator, we keep the bitmap LCD functions too, as we use
the bitmap functionality to put characters on screen. But since the charcell
LCD api and the bitmap LCD api use the same function names for a few
functions, we include redef and undef files to fix that...
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@419 a1c6a512-1295-4272-9138-f99709370657