The use of U+F800 to U+F804 has been deprecated since 2003; this makes the
deprecation effective by replacing these characters with the officially
assigned U+23BA to U+23BD.

It also updates unicode.txt to match the latest version from the LANANA
webpage.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>