CONFIG_BFIN537_BLUETECHNIX_CM is not available for thedefaultarchitecture x86.
Result is shown for architecture blackfin
default or selected kernelversion does not have config value CONFIG_BFIN537_BLUETECHNIX_CM.
Result is shown for kernelversion 5.3.7

Bluetechnix CM-BF537

modulename: cm_bf537.ko

configname: CONFIG_BFIN537_BLUETECHNIX_CM

System type
└─>Bluetechnix CM-BF537
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
CM-BF537 support for EVAL- and DEV-Board.

source code:
arch/blackfin/mach-bf537/boards/cm_bf537.c
depends
CONFIG_BF537