Add nrf5340dk configuration file.

Author: danicampora

ports/zephyr/boards/nrf5340dk_nrf5340_cpuapp.conf

@@ -0,0 +1,49 @@
+CONFIG_NETWORKING=n
+CONFIG_BT=y
+CONFIG_BT_DEVICE_NAME_DYNAMIC=y
+CONFIG_BT_GATT_DYNAMIC_DB=y
+CONFIG_BT_PERIPHERAL=y
+CONFIG_BT_CENTRAL=y
+CONFIG_BT_GATT_CLIENT=y
+CONFIG_BT_L2CAP_TX_MTU=252
+CONFIG_BT_BUF_ACL_RX_SIZE=256
+
+CONFIG_MICROPY_HEAP_SIZE=98304
+CONFIG_MAIN_STACK_SIZE=8192
+
+# CONFIG_DYNAMIC_THREAD=y
+CONFIG_THREAD_CUSTOM_DATA=y
+CONFIG_THREAD_MONITOR=y
+CONFIG_THREAD_STACK_INFO=y
+
+# Enable Bootloader
+CONFIG_BOOTLOADER_MCUBOOT=y
+
+# Enable SMP Server
+CONFIG_MCUMGR=y
+CONFIG_MCUMGR_GRP_IMG=y
+
+# CONFIG_MCUMGR_GRP_IMG dependencies
+CONFIG_FLASH=y
+CONFIG_IMG_MANAGER=y
+
+# CONFIG_IMG_MANAGER dependencies
+CONFIG_STREAM_FLASH=y
+
+# CONFIG_MCUMGR dependencies
+CONFIG_NET_BUF=y
+CONFIG_ZCBOR=y
+
+# Required for CONFIG_IMG_MANAGER
+CONFIG_FLASH_MAP=y
+
+# Enable BLE transfer
+CONFIG_BT=y
+CONFIG_BT_PERIPHERAL=y
+CONFIG_NCS_SAMPLE_MCUMGR_BT_OTA_DFU=y
+
+CONFIG_NCS_SAMPLE_MCUMGR_BT_OTA_DFU=y
+CONFIG_NCS_SAMPLE_MCUMGR_BT_OTA_DFU_SPEEDUP=y
+
+CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=4096
+