CONFIG_MULTITHREADING=y
# Enable QSPI (MX25R64) - Slot 1 in QSPI
CONFIG_NORDIC_QSPI_NOR=y
CONFIG_NORDIC_QSPI_NOR_FLASH_LAYOUT_PAGE_SIZE=4096
CONFIG_NORDIC_QSPI_NOR_STACK_WRITE_BUFFER_SIZE=4
CONFIG_BOOT_MAX_IMG_SECTORS=256