apparmor: sparse fix: make aa_create_aafs static

Sparse fix: make aa_create_aafs static.
Signed-off-by: James Morris <jmorris@namei.org>
Acked-by: John Johansen <john.johansen@canonical.com>

security/apparmor/apparmorfs.c

@@ -200,7 +200,7 @@ void __init aa_destroy_aafs(void)
  *
  * Returns: error on failure
  */
-int __init aa_create_aafs(void)
+static int __init aa_create_aafs(void)
 {
 	int error;