CONFIG_BOARD_ATNGW100_MKII is not available for thedefaultarchitecture x86.
Result is shown for architecture avr32
default or selected kernelversion does not have config value CONFIG_BOARD_ATNGW100_MKII.
Result is shown for kernelversion 6.5.1

ATNGW100 mkII Network Gateway

configname: CONFIG_BOARD_ATNGW100_MKII

AVR32 board type
└─>ATNGW100 mkII Network Gateway
In linux kernel since version 2.6.33 (release Date: 2010-02-24)