kernelconfig_penguin
CONFIG_ARM_EXYNOS4X12_CPUFREQ is not available for the default architecture x86.
Result is shown for architecture arm or arm64
default or selected kernelversion does not have config value CONFIG_ARM_EXYNOS4X12_CPUFREQ.
Result is shown for kernelversion 4.2.8

SAMSUNG EXYNOS4x12

configname: CONFIG_ARM_EXYNOS4X12_CPUFREQ

Linux Kernel Configuration
└─> SAMSUNG EXYNOS4x12

This adds the CPUFreq driver for Samsung EXYNOS4X12
SoC (EXYNOS4212 or EXYNOS4412).

If in doubt, say N.