drivers: spi: litex: increase SPI_MAX_CS_SIZE to 32

LiteSPI now has support for multiple CS.

Signed-off-by: Fin Maaß <f.maass@vogl-electronic.com>

Author: maass-hamburg

drivers/spi/spi_litex_litespi.c

@@ -26,7 +26,7 @@ LOG_MODULE_REGISTER(spi_litex_litespi);
 #define SPIFLASH_MASTER_STATUS_RX_READY_OFFSET 0x1
 
 #define SPI_MAX_WORD_SIZE 32
-#define SPI_MAX_CS_SIZE   4
+#define SPI_MAX_CS_SIZE   32
 
 #define SPI_LITEX_WIDTH   BIT(0)
 #define SPI_LITEX_MASK    BIT(0)