baum: fix build

08744c98 removed hw/baum.h
but did not adjust hw/baum.c, breaking build. Fix.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
Message-id: c50406bda98f8b277e8b9004a0012fa5e5c124d0.1362822910.git.blauwirbel@gmail.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

hw/baum.c

@@ -25,7 +25,6 @@
 #include "char/char.h"
 #include "qemu/timer.h"
 #include "usb.h"
-#include "baum.h"
 #include <brlapi.h>
 #include <brlapi_constants.h>
 #include <brlapi_keycodes.h>