applications: Align matter_bridge mcuboot configuration

Aligned the matter_bridge MCUboot configuration with other samples. The
previous configuration did not fit into the MCUboot partition.

Signed-off-by: Rafał Kuźnia <rafal.kuznia@nordicsemi.no>

applications/matter_bridge/sysbuild/mcuboot/boards/nrf5340dk_nrf5340_cpuapp.conf

@@ -0,0 +1,28 @@
+#
+# Copyright (c) 2023 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+CONFIG_NORDIC_QSPI_NOR=y
+CONFIG_NORDIC_QSPI_NOR_FLASH_LAYOUT_PAGE_SIZE=4096
+CONFIG_NORDIC_QSPI_NOR_STACK_WRITE_BUFFER_SIZE=16
+
+# The following configurations are required to support simultaneous multi image update
+CONFIG_PCD_APP=y
+CONFIG_UPDATEABLE_IMAGE_NUMBER=2
+
+CONFIG_BOOT_SWAP_USING_MOVE=n
+# Multi-image updates do not support image swapping yet.
+CONFIG_BOOT_UPGRADE_ONLY=y
+
+# The network core cannot access external flash directly. The flash simulator must be used to
+# provide a memory region that is used to forward the new firmware to the network core.
+CONFIG_FLASH_SIMULATOR=y
+CONFIG_FLASH_SIMULATOR_DOUBLE_WRITES=y
+CONFIG_FLASH_SIMULATOR_STATS=n
+
+# Enable custom command to erase settings partition.
+CONFIG_ENABLE_MGMT_PERUSER=y
+CONFIG_ZCBOR=y
+CONFIG_BOOT_MGMT_CUSTOM_STORAGE_ERASE=y

applications/matter_bridge/sysbuild/mcuboot/boards/nrf5340dk_nrf5340_cpuapp.overlay

@@ -0,0 +1,11 @@
+/*
+ * Copyright (c) 2023 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+/ {
+	chosen {
+		nordic,pm-ext-flash = &mx25r64;
+	};
+};