CONFIG_BOARD_MRMT_LCD_KWH043GM08 is not available for thedefaultarchitecture x86.
Result is shown for architecture avr32
default or selected kernelversion does not have config value CONFIG_BOARD_MRMT_LCD_KWH043GM08.
Result is shown for kernelversion 6.5.1

Formike KWH043GM08 or compatible

configname: CONFIG_BOARD_MRMT_LCD_KWH043GM08

RMTx LCD Selection
└─>Formike KWH043GM08 or compatible
In linux kernel since version 2.6.31 (release Date: 2009-09-09)  
Be sure to load the RMT2 resistor pack selectors accordingly