board: siemens: iot2050: Stop using special spl DT sources

We can simply use the default DT, Basic PG1, because no nodes that are
different between the variants play a role for SPL. Will help with the
migration to OF_UPSTREAM.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 8b9ced1..077a36c 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -1163,7 +1163,6 @@
 dtb-$(CONFIG_SOC_K3_AM654) += \
 	k3-am654-base-board.dtb \
 	k3-am654-r5-base-board.dtb \
-	k3-am65-iot2050-spl.dtb \
 	k3-am6528-iot2050-basic.dtb \
 	k3-am6528-iot2050-basic-pg2.dtb \
 	k3-am6548-iot2050-advanced.dtb \
diff --git a/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi b/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi
index 3a6db91..e17cd78 100644
--- a/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi
+++ b/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi
@@ -84,12 +84,12 @@
 				};
 
 				fdt-0 {
-					description = "k3-am65-iot2050-spl.dtb";
+					description = "k3-am6528-iot2050-basic.dtb";
 					type = "flat_dt";
 					arch = "arm";
 					compression = "none";
 					blob-ext {
-						filename = "spl/dts/k3-am65-iot2050-spl.dtb";
+						filename = "spl/dts/k3-am6528-iot2050-basic.dtb";
 					};
 				};
 			};
diff --git a/arch/arm/dts/k3-am65-iot2050-spl.dts b/arch/arm/dts/k3-am65-iot2050-spl.dts
deleted file mode 100644
index 4e668fa..0000000
--- a/arch/arm/dts/k3-am65-iot2050-spl.dts
+++ /dev/null
@@ -1,17 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (c) Siemens AG, 2018-2021
- *
- * Authors:
- *   Jan Kiszka <jan.kiszka@siemens.com>
- */
-
-/dts-v1/;
-
-#include "k3-am65-iot2050-common.dtsi"
-#include "k3-am65-iot2050-common-u-boot.dtsi"
-
-/ {
-	compatible = "siemens,iot2050", "ti,am654";
-	model = "Siemens IOT2050";
-};
diff --git a/configs/iot2050_defconfig b/configs/iot2050_defconfig
index 401e57a..22990ba 100644
--- a/configs/iot2050_defconfig
+++ b/configs/iot2050_defconfig
@@ -80,7 +80,6 @@
 CONFIG_OF_CONTROL=y
 CONFIG_SPL_OF_CONTROL=y
 CONFIG_SPL_MULTI_DTB_FIT=y
-CONFIG_SPL_OF_LIST="k3-am65-iot2050-spl"
 CONFIG_SPL_MULTI_DTB_FIT_NO_COMPRESSION=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_SYS_REDUNDAND_ENVIRONMENT=y