CONFIG_BFIN548_EZKIT is not available for thedefaultarchitecture x86.
Result is shown for architecture blackfin
default or selected kernelversion does not have config value CONFIG_BFIN548_EZKIT.
Result is shown for kernelversion 6.7-rc3

BF548-EZKIT

modulename: ezkit.ko

configname: CONFIG_BFIN548_EZKIT

System type
└─>BF548-EZKIT
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
BFIN548-EZKIT board support.

source code:
arch/blackfin/mach-bf548/boards/ezkit.c