[examples] Aligned nrfconnect examples to the NCS 2.7.0 version

The new nRF Connect SDK 2.7.0 version introduced significant
changes in the build system that resulted in a requirement
to refactor all examples suported by nrfconnect platform.

Author: kkasperczyk-no

.github/workflows/examples-nrfconnect.yaml

@@ -86,7 +86,7 @@ jobs:
             - name: Build example nRF Connect SDK Lighting App on nRF52840 Dongle
               if: github.event_name == 'push' || steps.changed_paths.outputs.nrfconnect == 'true'
               run: |
-                  scripts/examples/nrfconnect_example.sh lighting-app nrf52840dongle_nrf52840 -DCONF_FILE=prj_no_dfu.conf -DCONFIG_CHIP_ROTATING_DEVICE_ID=y
+                  scripts/examples/nrfconnect_example.sh lighting-app nrf52840dongle_nrf52840 -DCONFIG_CHIP_ROTATING_DEVICE_ID=y
                   .environment/pigweed-venv/bin/python3 scripts/tools/memory/gh_sizes.py \
                     nrfconnect nrf52840dongle_nrf52840 lighting-app \
                     examples/lighting-app/nrfconnect/build/zephyr/zephyr.elf \

config/nrfconnect/app/check-sysbuild-use.cmake

@@ -0,0 +1,31 @@
+#
+#   Copyright (c) 2024 Project CHIP Authors
+#
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+#
+
+# This script checks is sysbuild is used to build the target. If not, it prints the fatal error
+# message, as the nRF Connect examples do not support deprecated child-image approach anymore.
+
+if (NOT SYSBUILD) 
+    message(FATAL_ERROR " ###################################################################################\n"
+                        " # This example does not support child-image approach anymore.                     #\n"
+                        " # The nRF Connect SDK platform marked child-image approach as deprecated          #\n"
+                        " # and it is recommended to use the new sysbuild solution.                         #\n"
+                        " #                                                                                 #\n"
+                        " # To build this application with sysbuild support enabled,                        #\n"
+                        " # you have to add --sysbuild flag to the build command, for example:              #\n"
+                        " #                                                                                 #\n"
+                        " # west build -b <your_board_name> --sysbuild nameIt was moved to support sysbuild #\n"
+                        " ###################################################################################\n")
+endif()

examples/all-clusters-app/nrfconnect/CMakeLists.txt

@@ -34,6 +34,7 @@ target_compile_options(app PRIVATE -Werror -Wno-error=maybe-uninitialized)
 
 project(chip-nrfconnect-all-clusters-app-example)
 
+include(${CHIP_ROOT}/config/nrfconnect/app/check-sysbuild-use.cmake)
 include(${CHIP_ROOT}/config/nrfconnect/app/enable-gnu-std.cmake)
 include(${CHIP_ROOT}/config/nrfconnect/app/flashing.cmake)
 include(${CHIP_ROOT}/src/app/chip_data_model.cmake)

examples/all-clusters-app/nrfconnect/Kconfig.sysbuild

@@ -0,0 +1,67 @@
+#
+#    Copyright (c) 2024 Project CHIP Authors
+#
+#    Licensed under the Apache License, Version 2.0 (the "License");
+#    you may not use this file except in compliance with the License.
+#    You may obtain a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS,
+#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#    See the License for the specific language governing permissions and
+#    limitations under the License.
+#
+
+#### Radio core selection
+config NRF_DEFAULT_IPC_RADIO
+	default y
+
+# Enable IEEE802.15.4 serialization to network core
+config NETCORE_IPC_RADIO_IEEE802154
+	default y if (SOC_SERIES_NRF53X) && !WIFI_NRF700X
+
+# Enable Bluetooth serialization to network core
+config NETCORE_IPC_RADIO_BT_HCI_IPC
+	default y if SOC_SERIES_NRF53X
+
+if BOOTLOADER_MCUBOOT
+
+#### DFU multi-image support
+config DFU_MULTI_IMAGE_PACKAGE_BUILD
+	default y
+
+config DFU_MULTI_IMAGE_PACKAGE_APP
+	default y
+
+config PM_EXTERNAL_FLASH_MCUBOOT_SECONDARY
+	default y
+
+#### DFU network core configuration
+if SOC_SERIES_NRF53X
+
+config MCUBOOT_UPDATEABLE_IMAGES
+	default 2
+
+choice MCUBOOT_MODE
+	default MCUBOOT_MODE_OVERWRITE_ONLY
+endchoice
+
+choice BOOT_SIGNATURE_TYPE
+	default BOOT_SIGNATURE_TYPE_RSA
+endchoice
+
+config SECURE_BOOT_NETCORE
+	default y
+
+config NETCORE_APP_UPDATE
+	default y
+
+config DFU_MULTI_IMAGE_PACKAGE_NET
+	default y
+
+endif # SOC_SERIES_NRF53X
+endif # BOOTLOADER_MCUBOOT
+
+source "${ZEPHYR_BASE}/share/sysbuild/Kconfig"

examples/all-clusters-app/nrfconnect/boards/nrf52840dongle_nrf52840.conf

@@ -38,6 +38,3 @@ CONFIG_MATTER_LOG_LEVEL_INF=y
 
 # Use partition manager to configure the settings partition not to overlap with Open Bootloader
 CONFIG_PM_SINGLE_IMAGE=y
-
-# Enable CHIP pairing automatically on application start.
-CONFIG_CHIP_ENABLE_PAIRING_AUTOSTART=y