lockdown: move initcalls to the LSM framework

Reviewed-by: Kees Cook <kees@kernel.org>
Acked-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Reviewed-by: John Johansen <john.johhansen@canonical.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>

security/lockdown/lockdown.c

@@ -161,8 +161,6 @@ static int __init lockdown_secfs_init(void)
 	return PTR_ERR_OR_ZERO(dentry);
 }
 
-core_initcall(lockdown_secfs_init);
-
 #ifdef CONFIG_SECURITY_LOCKDOWN_LSM_EARLY
 DEFINE_EARLY_LSM(lockdown) = {
 #else
@@ -170,4 +168,5 @@ DEFINE_LSM(lockdown) = {
 #endif
 	.id = &lockdown_lsmid,
 	.init = lockdown_lsm_init,
+	.initcall_core = lockdown_secfs_init,
 };