# nRF52840 build: no network core image. # Re-enable NETCORE_HCI_IPC only for nRF5340 sysbuild configurations. SB_CONFIG_BOOTLOADER_MCUBOOT=y SB_CONFIG_BOOT_SIGNATURE_TYPE_ECDSA_P256=y SB_CONFIG_BOOT_SIGNATURE_KEY_FILE="${APPLICATION_CONFIG_DIR}/keys/mcuboot_private.pem"