[PATCH] uml: enable RAW

Add the RAW device driver options to the UML Kconfig.char file so that you may
use them in UML.

Signed-off-by: Allan <Graves&lt;allan.graves@gmail.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>