CONFIG_BOARD_MRMT_REV2 is not available for thedefaultarchitecture x86.
Result is shown for architecture avr32
default or selected kernelversion does not have config value CONFIG_BOARD_MRMT_REV2.
Result is shown for kernelversion 6.5.1

RMT2

configname: CONFIG_BOARD_MRMT_REV2

RMT Version
└─>RMT2
In linux kernel since version 2.6.31 (release Date: 2009-09-09)