spi: Kconfig: Add Zynq SPI controller entry

Add Zynq SPI controller Kconfig entry.

Signed-off-by: Jagan Teki <jteki@openedev.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Marek Vasut <marex@denx.de>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com>

drivers/spi/Kconfig

@@ -51,3 +51,11 @@ config CADENCE_QSPI
 	  Enable the Cadence Quad-SPI (QSPI) driver. This driver can be
 	  used to access the SPI NOR flash on platforms embedding this
 	  Cadence IP core.
+
+config ZYNQ_SPI
+	bool "Zynq SPI driver"
+	depends on DM_SPI && (ARCH_ZYNQ || TARGET_XILINX_ZYNQMP)
+	help
+	  Enable the Zynq SPI driver. This driver can be used to
+	  access the SPI NOR flash on platforms embedding this Zynq
+	  SPI IP core.