spi: cadence: Add 64BIT Kconfig dependency

xSPI block requires 64 bit operation for proper Marvell SDMA handling.
Disallow bulding on targets without 64 bit support.
Signed-off-by: Witold Sadowski <wsadowski@marvell.com>
Link: https://patch.msgid.link/20240730131627.1874257-1-wsadowski@marvell.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/Kconfig

@@ -267,7 +267,7 @@ config SPI_CADENCE_QUADSPI
 
 config SPI_CADENCE_XSPI
 	tristate "Cadence XSPI controller"
-	depends on OF && HAS_IOMEM
+	depends on OF && HAS_IOMEM && 64BIT
 	depends on SPI_MEM
 	help
 	  Enable support for the Cadence XSPI Flash controller.