CONFIG_BFIN548_BLUETECHNIX_CM is not available for thedefaultarchitecture x86.
Result is shown for architecture blackfin
default or selected kernelversion does not have config value CONFIG_BFIN548_BLUETECHNIX_CM.
Result is shown for kernelversion 6.7-rc3

Bluetechnix CM-BF548

modulename: cm_bf548.ko

configname: CONFIG_BFIN548_BLUETECHNIX_CM

System type
└─>Bluetechnix CM-BF548
In linux kernel since version 2.6.26 (release Date: 2008-07-13)  
CM-BF548 support for DEV-Board.

source code:
arch/blackfin/mach-bf548/boards/cm_bf548.c
depends
CONFIG_BF548