arm64: dts: rockchip: Enable SPI0 and SPI4 on Rock960

Enable SPI0 and SPI4 exposed on the Low and High speed expansion
connectors of Rock960.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3399-rock960.dts

@@ -114,6 +114,16 @@ host_vbus_drv: host-vbus-drv {
 	};
 };
 
+&spi0 {
+	/* On Low speed expansion (LS-SPI0) */
+	status = "okay";
+};
+
+&spi4 {
+	/* On High speed expansion (HS-SPI1) */
+	status = "okay";
+};
+
 &usbdrd_dwc3_0 {
 	dr_mode = "otg";
 };