tests/subsys/dfu/*: Switch to native_sim

Switch from native_posix to native_sim as default test platform
And switch overlays to native_sim.

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>

tests/subsys/dfu/img_util/testcase.yaml

@@ -1,18 +1,15 @@
+common:
+  platform_allow:
+    - nrf52840dk_nrf52840
+    - native_posix
+    - native_posix_64
+    - native_sim
+    - native_sim_64
+  integration_platforms:
+    - nrf52840dk_nrf52840
 tests:
   dfu.image_util:
-    platform_allow:
-      - nrf52840dk_nrf52840
-      - native_posix
-      - native_posix_64
     tags: dfu_image_util
-    integration_platforms:
-      - nrf52840dk_nrf52840
   dfu.image_util.progressive:
     extra_args: OVERLAY_CONFIG=progressively_overlay.conf
-    platform_allow:
-      - nrf52840dk_nrf52840
-      - native_posix
-      - native_posix_64
     tags: dfu_image_util
-    integration_platforms:
-      - nrf52840dk_nrf52840

tests/subsys/dfu/mcuboot/testcase.yaml

@@ -4,6 +4,8 @@ tests:
       - nrf52840dk_nrf52840
       - native_posix
       - native_posix_64
+      - native_sim
+      - native_sim_64
     tags: dfu_mcuboot
     integration_platforms:
       - nrf52840dk_nrf52840

tests/subsys/dfu/mcuboot_multi/native_posix_64.overlay

@@ -1,37 +0,0 @@
-/*
- * Copyright (c) 2020 Nordic Semiconductor ASA
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-
-/delete-node/ &scratch_partition;
-/delete-node/ &storage_partition;
-
-&flash0 {
-	partitions {
-		compatible = "fixed-partitions";
-		#address-cells = <1>;
-		#size-cells = <1>;
-
-		boot_partition: partition@0 {
-			label = "mcuboot";
-			reg = <0x00000000 0x0000C000>;
-		};
-		slot0_partition: partition@c000 {
-			label = "image-0";
-			reg = <0x0000C000 0x00069000>;
-		};
-		slot1_partition: partition@75000 {
-			label = "image-1";
-			reg = <0x00075000 0x00069000>;
-		};
-		slot2_partition: partition@DE000 {
-			label = "image-2";
-			reg = <0x000DE000 0x00069000>;
-		};
-		slot3_partition: partition@146000 {
-			label = "image-3";
-			reg = <0x00146000 0x00069000>;
-		};
-	};
-};

tests/subsys/dfu/mcuboot_multi/native_sim_64.overlay

@@ -0,0 +1,7 @@
+/*
+ * Copyright (c) 2020 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "native_sim.overlay"

tests/subsys/dfu/mcuboot_multi/testcase.yaml

@@ -2,8 +2,8 @@ tests:
   dfu.mcuboot.multiimage:
     platform_allow:
       - nrf52840dk_nrf52840
-      - native_posix
-      - native_posix_64
+      - native_sim
+      - native_sim_64
     tags: dfu_mcuboot
     integration_platforms:
       - nrf52840dk_nrf52840