[CRYPTO] skcipher: Move chainiv/seqiv into crypto_blkcipher module

For compatibility with dm-crypt initramfs setups it is useful to merge
chainiv/seqiv into the crypto_blkcipher module.  Since they're required
by most algorithms anyway this is an acceptable trade-off.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

crypto/blkcipher.c

@@ -696,5 +696,34 @@ void skcipher_geniv_exit(struct crypto_tfm *tfm)
 }
 EXPORT_SYMBOL_GPL(skcipher_geniv_exit);
 
+static int __init blkcipher_module_init(void)
+{
+	int err;
+
+	err = chainiv_module_init();
+	if (err)
+		goto out;
+
+	err = eseqiv_module_init();
+	if (err)
+		goto eseqiv_err;
+
+out:
+	return err;
+
+eseqiv_err:
+	chainiv_module_exit();
+	goto out;
+}
+
+static void __exit blkcipher_module_exit(void)
+{
+	eseqiv_module_exit();
+	chainiv_module_exit();
+}
+
+module_init(blkcipher_module_init);
+module_exit(blkcipher_module_exit);
+
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Generic block chaining cipher type");