spi: cadence_qspi: Add quad write support

Use quad write if SPI_TX_QUAD flag is set.

Tested quad write on Stratix 10 SoC board (Micron
serial NOR flash, mt25qu02g)

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
diff --git a/drivers/spi/cadence_qspi.c b/drivers/spi/cadence_qspi.c
index 11fce9c..efdb178 100644
--- a/drivers/spi/cadence_qspi.c
+++ b/drivers/spi/cadence_qspi.c
@@ -256,7 +256,7 @@
 		break;
 		case CQSPI_INDIRECT_WRITE:
 			err = cadence_qspi_apb_indirect_write_setup
-				(plat, priv->cmd_len, cmd_buf);
+				(plat, priv->cmd_len, dm_plat->mode, cmd_buf);
 			if (!err) {
 				err = cadence_qspi_apb_indirect_write_execute
 				(plat, data_bytes, dout);