SELinux: renumber the superblock options

Just to make it clear that we have mount time options and flags,
separate them.  Since I decided to move the non-mount options above
above 0x10, we need a short instead of a char.  (x86 padding says
this takes up no additional space as we have a 3byte whole in the
structure)

Signed-off-by: Eric Paris <eparis@redhat.com>
diff --git a/security/selinux/include/objsec.h b/security/selinux/include/objsec.h
index aa47bca..fe99f64 100644
--- a/security/selinux/include/objsec.h
+++ b/security/selinux/include/objsec.h
@@ -59,7 +59,7 @@
 	u32 def_sid;			/* default SID for labeling */
 	u32 mntpoint_sid;		/* SECURITY_FS_USE_MNTPOINT context for files */
 	unsigned int behavior;		/* labeling behavior */
-	unsigned char flags;		/* which mount options were specified */
+	unsigned short flags;		/* which mount options were specified */
 	struct mutex lock;
 	struct list_head isec_head;
 	spinlock_t isec_lock;