Move several *_SUPER_MAGIC symbols to include/linux/magic.h.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/fs/affs/super.c b/fs/affs/super.c
index 5200f49..1735201 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -14,6 +14,7 @@
 #include <linux/init.h>
 #include <linux/statfs.h>
 #include <linux/parser.h>
+#include <linux/magic.h>
 #include "affs.h"
 
 extern struct timezone sys_tz;