crypto: atmel-aes - fix atmel-ctr-aes driver for RFC 3686

crypto_rfc3686_alloc() in crypto/ctr.c expects to be used with a stream
cipher (alg->cra_blocksize == 1).

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/atmel-aes.c

@@ -1075,7 +1075,7 @@ static struct crypto_alg aes_algs[] = {
 	.cra_driver_name	= "atmel-ctr-aes",
 	.cra_priority		= ATMEL_AES_PRIORITY,
 	.cra_flags		= CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
-	.cra_blocksize		= AES_BLOCK_SIZE,
+	.cra_blocksize		= 1,
 	.cra_ctxsize		= sizeof(struct atmel_aes_ctx),
 	.cra_alignmask		= 0xf,
 	.cra_type		= &crypto_ablkcipher_type,