crypto: virtio - clean up indentation, replace spaces with tab

A statement is indented with spaces and not indented enough, fix this
replacing spaces with a tab.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/virtio/virtio_crypto_algs.c

@@ -406,7 +406,7 @@ __virtio_crypto_ablkcipher_do_req(struct virtio_crypto_sym_request *vc_sym_req,
 	} else {
 		req_data->header.session_id =
 			cpu_to_le64(ctx->dec_sess_info.session_id);
-	    req_data->header.opcode =
+		req_data->header.opcode =
 			cpu_to_le32(VIRTIO_CRYPTO_CIPHER_DECRYPT);
 	}
 	req_data->u.sym_req.op_type = cpu_to_le32(VIRTIO_CRYPTO_SYM_OP_CIPHER);