CONFIG_BFIN538_EZKIT is not available for thedefaultarchitecture x86.
Result is shown for architecture blackfin
default or selected kernelversion does not have config value CONFIG_BFIN538_EZKIT.
Result is shown for kernelversion 6.7-rc3

BF538-EZKIT

modulename: ezkit.ko

configname: CONFIG_BFIN538_EZKIT

System type
└─>BF538-EZKIT
In linux kernel since version 2.6.29 (release Date: 2009-03-23)  
BF538-EZKIT-LITE board support.

source code:
arch/blackfin/mach-bf538/boards/ezkit.c