default or selected kernelversion does not have config value CONFIG_ARM_S3C24XX_CPUFREQ.
Result is shown for kernelversion 6.9.9

CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)

modulename: s3c24xx-cpufreq.ko

configname: CONFIG_ARM_S3C24XX_CPUFREQ

Linux Kernel Configuration
└─>Power management and ACPI options
└─>CPU Frequency scaling
└─>CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This enables the CPUfreq driver for the Samsung S3C24XX family
of CPUs.

For details, take a look at Documentation/cpu-freq.

If in doubt, say N.

source code: