arm64: tegra: smaug: Enable SPI-NOR flash

Add support for the SPI-NOR flash found in Pixel C devices.

Signed-off-by: Diogo Ivo <diogo.ivo@tecnico.ulisboa.pt>
Signed-off-by: Thierry Reding <treding@nvidia.com>

Author: diogoivo

arch/arm64/boot/dts/nvidia/tegra210-smaug.dts

@@ -1892,6 +1892,18 @@
 		};
 	};
 
+	spi@70410000 {
+		status = "okay";
+
+		flash@0 {
+			compatible = "jedec,spi-nor";
+			reg = <0>;
+			spi-max-frequency = <104000000>;
+			spi-tx-bus-width = <2>;
+			spi-rx-bus-width = <2>;
+		};
+	};
+
 	clk32k_in: clock-32k {
 		compatible = "fixed-clock";
 		clock-frequency = <32768>;