arm: dts: imx8mn-var-som-symphony: Consolidate with imx8mn-u-boot

Now that a unified imx8mn-u-boot is available, remove duplicated
code for generating flash.bin and other common imx8mn peripherals.

Signed-off-by: Adam Ford <aford173@gmail.com>

arch/arm/dts/imx8mn-var-som-symphony-u-boot.dtsi

@@ -3,22 +3,7 @@
  * Copyright 2021 Collabora Ltd.
  */
 
-/ {
+#include "imx8mn-u-boot.dtsi"
-	binman: binman {
-		multiple-images;
-	};
-
-	wdt-reboot {
-		compatible = "wdt-reboot";
-		wdt = <&wdog1>;
-		u-boot,dm-spl;
-	};
-};
-
-&{/soc@0} {
-	u-boot,dm-pre-reloc;
-	u-boot,dm-spl;
-};
 
 &{/soc@0/bus@30800000/i2c@30a20000/pmic@4b} {
 	u-boot,dm-spl;
@@ -28,27 +13,6 @@
 	u-boot,dm-spl;
 };
 
-&aips1 {
-	u-boot,dm-pre-reloc;
-	u-boot,dm-spl;
-};
-
-&aips3 {
-	u-boot,dm-spl;
-};
-
-&aips4 {
-	u-boot,dm-spl;
-};
-
-&clk {
-	u-boot,dm-pre-reloc;
-	u-boot,dm-spl;
-	/delete-property/ assigned-clocks;
-	/delete-property/ assigned-clock-parents;
-	/delete-property/ assigned-clock-rates;
-};
-
 &gpio1 {
 	u-boot,dm-spl;
 };
@@ -65,15 +29,6 @@
 	u-boot,dm-spl;
 };
 
-&iomuxc {
-	u-boot,dm-spl;
-};
-
-&osc_24m {
-	u-boot,dm-pre-reloc;
-	u-boot,dm-spl;
-};
-
 &pinctrl_i2c1 {
 	u-boot,dm-spl;
 };
@@ -113,144 +68,3 @@
 &usdhc3 {
 	u-boot,dm-spl;
 };
-
-&wdog1 {
-	u-boot,dm-spl;
-};
-
-&binman {
-	u-boot-spl-ddr {
-		align = <4>;
-		align-size = <4>;
-		filename = "u-boot-spl-ddr.bin";
-		pad-byte = <0xff>;
-
-		u-boot-spl {
-			align-end = <4>;
-			filename = "u-boot-spl.bin";
-		};
-
-		ddr-1d-imem-fw {
-			filename = "ddr4_imem_1d.bin";
-			align-end = <4>;
-			type = "blob-ext";
-		};
-
-		ddr-1d-dmem-fw {
-			filename = "ddr4_dmem_1d.bin";
-			align-end = <4>;
-			type = "blob-ext";
-		};
-
-		ddr-2d-imem-fw {
-			filename = "ddr4_imem_2d.bin";
-			align-end = <4>;
-			type = "blob-ext";
-		};
-
-		ddr-2d-dmem-fw {
-			filename = "ddr4_dmem_2d.bin";
-			align-end = <4>;
-			type = "blob-ext";
-		};
-	};
-
-	spl {
-		filename = "spl.bin";
-
-		mkimage {
-			args = "-n spl/u-boot-spl.cfgout -T imx8mimage -e 0x912000";
-
-			blob {
-				filename = "u-boot-spl-ddr.bin";
-			};
-		};
-	};
-
-	itb {
-		filename = "u-boot.itb";
-
-		fit {
-			description = "Configuration to load ATF before U-Boot";
-			fit,external-offset = <CONFIG_FIT_EXTERNAL_OFFSET>;
-			fit,fdt-list = "of-list";
-			#address-cells = <1>;
-
-			images {
-				uboot {
-					arch = "arm64";
-					compression = "none";
-					description = "U-Boot (64-bit)";
-					load = <CONFIG_SYS_TEXT_BASE>;
-					type = "standalone";
-
-					uboot_blob {
-						filename = "u-boot-nodtb.bin";
-						type = "blob-ext";
-					};
-				};
-
-				atf {
-					arch = "arm64";
-					compression = "none";
-					description = "ARM Trusted Firmware";
-					entry = <0x960000>;
-					load = <0x960000>;
-					type = "firmware";
-
-					atf_blob {
-						filename = "bl31.bin";
-						type = "atf-bl31";
-					};
-				};
-
-				binman_fip: fip {
-					arch = "arm64";
-					compression = "none";
-					description = "Trusted Firmware FIP";
-					load = <0x40310000>;
-					type = "firmware";
-				};
-
-				@fdt-SEQ {
-					compression = "none";
-					description = "NAME";
-					type = "flat_dt";
-
-					uboot_fdt_blob {
-						filename = "u-boot.dtb";
-						type = "blob-ext";
-					};
-				};
-			};
-
-			configurations {
-				default = "@config-DEFAULT-SEQ";
-
-				binman_configuration: @config-SEQ {
-					description = "NAME";
-					fdt = "fdt-SEQ";
-					firmware = "uboot";
-					loadables = "atf";
-				};
-			};
-		};
-	};
-
-	imx-boot {
-		filename = "flash.bin";
-		pad-byte = <0x00>;
-
-		spl {
-			filename = "spl.bin";
-			offset = <0x0>;
-			type = "blob-ext";
-		};
-
-		binman_uboot: uboot {
-			filename = "u-boot.itb";
-			offset = <0x58000>;
-			type = "blob-ext";
-		};
-	};
-};