arm: dts: zynq-coraz7s-adaq4003: Switch to spi-engine-ex

The new AD4000 series driver uses SPI prepare message mechanism which is
only supported by the new spi-engine-ex driver (spi-axi-spi-engine-ex.c) in
ADI Linux tree.
Update AD4000 series device trees to match the upstream-like SPI-Engine
driver.

Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com>

Author: machschmitt

arch/arm/boot/dts/zynq-coraz7s-adaq4003.dts

@@ -34,7 +34,7 @@
 	};
 
 	spi_engine: spi@44a00000 {
-		compatible = "adi,axi-spi-engine-1.00.a";
+		compatible = "adi-ex,axi-spi-engine-1.00.a";
 		reg = <0x44a00000 0x10000>;
 		interrupt-parent = <&intc>;
 		interrupts = <0 56 IRQ_TYPE_LEVEL_HIGH>;