apparmor: constify policy name and hname

Signed-off-by: John Johansen <john.johansen@canonical.com>
diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
index d7cfd79..96a02ee 100644
--- a/security/apparmor/apparmorfs.c
+++ b/security/apparmor/apparmorfs.c
@@ -38,7 +38,7 @@
  *
  * Returns: length of mangled name
  */
-static int mangle_name(char *name, char *target)
+static int mangle_name(const char *name, char *target)
 {
 	char *t = target;