spi: spi-topcliff-pch: Fix checkpatch spacing error

Fix checkpatch error:

  ERROR: space prohibited before that '++' (ctx:WxB)
  #1204: FILE: spi-topcliff-pch.c:1204:
  +			for (i = 0; i < cnt; i ++) {
 			                       ^

Signed-off-by: Jay Fang <f.fangjian@huawei.com>
Link: https://lore.kernel.org/r/1616566602-13894-2-git-send-email-f.fangjian@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-topcliff-pch.c

@@ -1201,6 +1201,7 @@ static void pch_spi_process_messages(struct work_struct *pwork)
 		if (data->use_dma) {
 			int i;
 			char *save_rx_buf = data->cur_trans->rx_buf;
+
 			for (i = 0; i < cnt; i++) {
 				pch_spi_handle_dma(data, &bpw);
 				if (!pch_spi_start_transfer(data)) {