ARM: tegra: add SPI flash to Venice2 DT

Venice2 contains an SPI Flash chip, which contains the bootloader.
Add this to the DT, so the kernel can access it.
Signed-off-by: NStephen Warren <swarren@nvidia.com>

arch/arm/boot/dts/tegra124-venice2.dts

@@ -914,6 +914,16 @@
 		};
 	};
 
+	spi@7000da00 {
+		status = "okay";
+		spi-max-frequency = <25000000>;
+		spi-flash@0 {
+			compatible = "winbond,w25q32dw";
+			reg = <0>;
+			spi-max-frequency = <20000000>;
+		};
+	};
+
 	pmc@7000e400 {
 		nvidia,invert-interrupt;
 		nvidia,suspend-mode = <1>;