CONFIG_DUAL_CORE_TEST_MODULE is not available for thedefaultarchitecture x86.
Result is shown for architecture blackfin
default or selected kernelversion does not have config value CONFIG_DUAL_CORE_TEST_MODULE.
Result is shown for kernelversion 5.19-rc1

Dual Core Test Module

modulename: dualcore_test.ko

configname: CONFIG_DUAL_CORE_TEST_MODULE

Linux Kernel Configuration
└─>Kernel hacking
└─>Dual Core Test Module
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
Say Y here to build-in dual core test module for dual core test.

source code:
depends
CONFIG_BF561