CONFIG_BOARD_MRMT_ADS7846_TS is not available for thedefaultarchitecture x86.
Result is shown for architecture avr32
default or selected kernelversion does not have config value CONFIG_BOARD_MRMT_ADS7846_TS.
Result is shown for kernelversion 6.5.1

Use ADS7846 Touchscreen

configname: CONFIG_BOARD_MRMT_ADS7846_TS

Touchscreen Driver
└─>Use ADS7846 Touchscreen
In linux kernel since version 2.6.31 (release Date: 2009-09-09)