constify security_path_chroot()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

security/security.c

@@ -499,7 +499,7 @@ int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
 	return call_int_hook(path_chown, 0, path, uid, gid);
 }
 
-int security_path_chroot(struct path *path)
+int security_path_chroot(const struct path *path)
 {
 	return call_int_hook(path_chroot, 0, path);
 }