drivers: spi: siwx91x: Align mosi_overrun to 32 bytes

Updated mosi_overrun alignment from 4 bytes to 32 bytes to
ensure compatibility with the GPDMA driver. This prevents
alignment-related errors during DMA transfers.

Signed-off-by: Sai Santhosh Malae <Santhosh.Malae@silabs.com>

Author: smalae

drivers/spi/spi_silabs_siwx91x_gspi.c

@@ -49,7 +49,7 @@ struct gspi_siwx91x_config {
 	const struct device *clock_dev;
 	clock_control_subsys_t clock_subsys;
 	const struct pinctrl_dev_config *pcfg;
-	uint8_t mosi_overrun __aligned(4);
+	uint8_t mosi_overrun __aligned(32);
 };
 
 struct gspi_siwx91x_data {