### Summary

 Update from upstream.

 Used:

diff -duwr memfault-asset-tracker/ nrf/applications/asset_tracker_v2/ | patch -p0
Resolved a few rejected patch changes, and reverted some changes that removed features we've added.
Checked with `diff -r memfault-asset-tracker nrf/applications/asset_tracker_v2` for
any lingering difference.

 ### Test Plan

 - Flashed thingy91, uploaded data
 - CI

.github/workflows/build.yaml

@@ -47,14 +47,14 @@ jobs:
           west update --narrow -o=--depth=1 -o=--recurse-submodules --path-cache ~/zephyr-thingy91-path-cache
           pip install -r zephyr/scripts/requirements.txt
           pip install -r nrf/scripts/requirements-build.txt
-          west build -b thingy91_nrf9160_ns -p always memfault-asset-tracker
+          west build -b thingy91/nrf9160/ns -p always memfault-asset-tracker
 
       - name: Build app with Memfault overlay
         run: |
           cd $GITHUB_WORKSPACE
           cd ../
           . venv/bin/activate
-          west build -b thingy91_nrf9160_ns -p always memfault-asset-tracker -- \
+          west build -b thingy91/nrf9160/ns -p always memfault-asset-tracker -- \
           -DCONFIG_MEMFAULT_NCS_PROJECT_KEY=\"DUMMY_KEY\" \
           -DOVERLAY_CONFIG=overlay-memfault.conf \
           -DCONFIG_MEMFAULT_NCS_FW_VERSION_STATIC=y \

.github/workflows/ota-deploy.yaml

@@ -55,7 +55,7 @@ jobs:
           west update --narrow -o=--depth=1 -o=--recurse-submodules --path-cache ~/zephyr-thingy91-path-cache
           pip install -r zephyr/scripts/requirements.txt
           pip install -r nrf/scripts/requirements-build.txt
-          west build -b thingy91_nrf9160_ns -p always memfault-asset-tracker -- \
+          west build -b thingy91/nrf9160/ns -p always memfault-asset-tracker -- \
           -DCONFIG_MEMFAULT_NCS_PROJECT_KEY=\"${{ secrets.THINGY91_OTA_PROJECT_KEY }}\" \
           -DOVERLAY_CONFIG=overlay-memfault.conf \
           -DCONFIG_MEMFAULT_NCS_FW_VERSION_STATIC=y \

CMakeLists.txt

@@ -29,7 +29,7 @@ add_subdirectory_ifdef(CONFIG_WATCHDOG_APPLICATION src/watchdog)
 
 # Include nRF modem library header file for PC builds.
 # These are used throughout the application in type definitions.
-if (CONFIG_BOARD_QEMU_X86 OR CONFIG_BOARD_NATIVE_POSIX)
+if (CONFIG_BOARD_NATIVE_SIM)
 	target_include_directories(app PRIVATE ${NRFXLIB_DIR}/nrf_modem/include/)
 
 	# Make the folder that contains the certificates global so that it can be located by the

Kconfig.sysbuild

@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2023 Nordic Semiconductor
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+choice BOOTLOADER
+	default BOOTLOADER_MCUBOOT if !BOARD_NATIVE_SIM
+endchoice
+
+config SECURE_BOOT_APPCORE
+	default y if BOARD_NRF9160DK_NRF9160_NS \
+		|| BOARD_NRF9151DK_NRF9151_NS \
+		|| BOARD_NRF9161DK_NRF9161_NS
+
+config WIFI_NRF700X
+	default y if BOARD_THINGY91X_NRF9151_NS
+
+config PM_EXTERNAL_FLASH_MCUBOOT_SECONDARY
+	default y if BOARD_NRF9151DK_NRF9151_NS || BOARD_NRF9161DK_NRF9161_NS
+	default y if BOARD_NRF9160DK_NRF9160_NS \
+		&& "${BOARD_REVISION}" != "0.1.0" \
+		&& "${BOARD_REVISION}" != "0.7.0" \
+		&& "${BOARD_REVISION}" != "0.7.1" \
+		&& "${BOARD_REVISION}" != "0.8.0" \
+		&& "${BOARD_REVISION}" != "0.8.2" \
+		&& "${BOARD_REVISION}" != "0.8.3" \
+		&& "${BOARD_REVISION}" != "0.8.5" \
+		&& "${BOARD_REVISION}" != "0.9.0"
+
+source "${ZEPHYR_BASE}/share/sysbuild/Kconfig"

boards/native_posix.conf → boards/native_sim.conf

@@ -57,7 +57,7 @@ CONFIG_SENSOR_MODULE=n
 CONFIG_MODEM_MODULE=n
 CONFIG_UI_MODULE=n
 
-# Running the application in native_posix emulator requires functionality
+# Running the application in native_sim emulator requires functionality
 # that is present in the debug module
 CONFIG_DEBUG_MODULE=y
 
@@ -66,7 +66,7 @@ CONFIG_NET_NATIVE=y
 CONFIG_NET_TCP=y
 CONFIG_NET_UDP=y
 CONFIG_NET_SOCKETS_OFFLOAD=n
-CONFIG_NET_SOCKETS_POSIX_NAMES=y
+CONFIG_POSIX_API=y
 CONFIG_NET_SOCKETS_SOCKOPT_TLS=y
 CONFIG_NET_PKT_RX_COUNT=32
 CONFIG_NET_PKT_TX_COUNT=32
@@ -116,3 +116,6 @@ CONFIG_BUILD_S1_VARIANT=n
 
 # Watchdog
 CONFIG_WATCHDOG_APPLICATION=n
+
+# Cloud module certificates
+CONFIG_MQTT_HELPER_CERTIFICATES_FOLDER="src/cloud-certs"

boards/nrf9151dk_nrf9151_ns.conf

@@ -0,0 +1,18 @@
+#
+# Copyright (c) 2024 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+# This file is merged with prj.conf in the application folder, and options
+# set here will take precedence if they are present in both files.
+
+# CAF - Common Application Framework
+CONFIG_GPIO=y
+CONFIG_LED_GPIO=y
+
+# Enable external flash
+CONFIG_SPI=y
+CONFIG_SPI_NOR=y
+CONFIG_SPI_NOR_SFDP_DEVICETREE=y
+CONFIG_PM_OVERRIDE_EXTERNAL_DRIVER_CHECK=y

boards/nrf9151dk_nrf9151_ns.overlay

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2024 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+/	{
+	/delete-node/ leds;
+
+	leds0 {
+		compatible = "gpio-leds";
+		status = "okay";
+		label = "LED0";
+		led0: led_0 {
+			status = "okay";
+			gpios = <&gpio0 0 0>;
+			label = "Green LED 1";
+		};
+	};
+
+	leds1 {
+		compatible = "gpio-leds";
+		status = "okay";
+		label = "LED1";
+		led1: led_1 {
+			gpios = <&gpio0 1 0>;
+			label = "Green LED 2";
+		};
+	};
+
+	leds2 {
+		compatible = "gpio-leds";
+		status = "okay";
+		label = "LED2";
+		led2: led_2 {
+			gpios = <&gpio0 4 0>;
+			label = "Green LED 3";
+		};
+	};
+
+	leds3 {
+		compatible = "gpio-leds";
+		status = "okay";
+		label = "LED3";
+		led3: led_3 {
+			gpios = <&gpio0 5 0>;
+			label = "Green LED 4";
+		};
+	};
+
+	/* Configure partition manager to use gd25wb256 as the external flash */
+	chosen {
+		nordic,pm-ext-flash = &gd25wb256;
+	};
+
+	aliases {
+		ext-flash = &gd25wb256;
+	};
+};
+
+&gd25wb256 {
+	status = "okay";
+};