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

Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/include/linux/jffs2.h b/include/linux/jffs2.h
index c9c7607..840631f 100644
--- a/include/linux/jffs2.h
+++ b/include/linux/jffs2.h
@@ -15,12 +15,12 @@
 #ifndef __LINUX_JFFS2_H__
 #define __LINUX_JFFS2_H__
 
+#include <linux/magic.h>
+
 /* You must include something which defines the C99 uintXX_t types. 
    We don't do it from here because this file is used in too many
    different environments. */
 
-#define JFFS2_SUPER_MAGIC 0x72b6
-
 /* Values we may expect to find in the 'magic' field */
 #define JFFS2_OLD_MAGIC_BITMASK 0x1984
 #define JFFS2_MAGIC_BITMASK 0x1985