spi: tegra210-quad: Fix an error message

'ret' is known to be 0 here.
No error code is available, so just remove it from the error message.

Fixes: 921fc183 ("spi: tegra210-quad: Add support for Tegra210 QSPI controller")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/b990c1bb5830196142c3d70e3e3c6c0245a7e75f.1620404705.git.christophe.jaillet@wanadoo.frSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-tegra210-quad.c

@@ -1028,7 +1028,7 @@ static int tegra_qspi_transfer_one_message(struct spi_master *master, struct spi
 		ret = wait_for_completion_timeout(&tqspi->xfer_completion,
 						  QSPI_DMA_TIMEOUT);
 		if (WARN_ON(ret == 0)) {
-			dev_err(tqspi->dev, "transfer timeout: %d\n", ret);
+			dev_err(tqspi->dev, "transfer timeout\n");
 			if (tqspi->is_curr_dma_xfer && (tqspi->cur_direction & DATA_DIR_TX))
 				dmaengine_terminate_all(tqspi->tx_dma_chan);
 			if (tqspi->is_curr_dma_xfer && (tqspi->cur_direction & DATA_DIR_RX))