arm64: dts: rockchip: Add SFC to Khadas Edge 2

This commit adds SPI flash support for Khadas Edge 2.
Signed-off-by: Muhammed Efe Cetin <efectn@protonmail.com>
Link: https://lore.kernel.org/r/00942603f7e61ecb2a0067bebf6795dab3571613.1708381247.git.efectn@protonmail.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3588s-khadas-edge2.dts

@@ -299,6 +299,20 @@ &sdmmc {
 	status = "okay";
 };
 
+&sfc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&fspim2_pins>;
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0x0>;
+		spi-max-frequency = <100000000>;
+		spi-rx-bus-width = <4>;
+		spi-tx-bus-width = <1>;
+	};
+};
+
 &spi2 {
 	assigned-clocks = <&cru CLK_SPI2>;
 	assigned-clock-rates = <200000000>;