SELinux: reorder inode_security_struct to increase objs/slab on 64bit

reorder inode_security_struct to remove padding on 64 bit builds

size reduced from 72 to 64 bytes increasing objects per slab to 64.

Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
Signed-off-by: James Morris <jmorris@namei.org>
diff --git a/security/selinux/include/objsec.h b/security/selinux/include/objsec.h
index 032c235..5f0be19 100644
--- a/security/selinux/include/objsec.h
+++ b/security/selinux/include/objsec.h
@@ -43,8 +43,8 @@
 	u32 sid;		/* SID of this object */
 	u16 sclass;		/* security class of this object */
 	unsigned char initialized;	/* initialization flag */
-	struct mutex lock;
 	unsigned char inherit;	/* inherit SID from parent entry */
+	struct mutex lock;
 };
 
 struct file_security_struct {