spi: aspeed: Fix typo in mode_bits field for AST2600 platform

Both quad SPI TX and RX modes can be supported on AST2600.
Correct typo in mode_bits field in both ast2600_fmc_data
and ast2600_spi_data structs.
Signed-off-by: NChin-Ting Kuo <chin-ting_kuo@aspeedtech.com>
Reviewed-by: NCédric Le Goater <clg@kaod.org>
Link: https://lore.kernel.org/r/20221005083209.222272-1-chin-ting_kuo@aspeedtech.comSigned-off-by: NMark Brown <broonie@kernel.org>

drivers/spi/spi-aspeed-smc.c

@@ -1163,7 +1163,7 @@ static const struct aspeed_spi_data ast2500_spi_data = {
 static const struct aspeed_spi_data ast2600_fmc_data = {
 	.max_cs	       = 3,
 	.hastype       = false,
-	.mode_bits     = SPI_RX_QUAD | SPI_RX_QUAD,
+	.mode_bits     = SPI_RX_QUAD | SPI_TX_QUAD,
 	.we0	       = 16,
 	.ctl0	       = CE0_CTRL_REG,
 	.timing	       = CE0_TIMING_COMPENSATION_REG,
@@ -1178,7 +1178,7 @@ static const struct aspeed_spi_data ast2600_fmc_data = {
 static const struct aspeed_spi_data ast2600_spi_data = {
 	.max_cs	       = 2,
 	.hastype       = false,
-	.mode_bits     = SPI_RX_QUAD | SPI_RX_QUAD,
+	.mode_bits     = SPI_RX_QUAD | SPI_TX_QUAD,
 	.we0	       = 16,
 	.ctl0	       = CE0_CTRL_REG,
 	.timing	       = CE0_TIMING_COMPENSATION_REG,