CONFIG_EXYNOS_MCPM is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

CONFIG_EXYNOS_MCPM (not configurable)

modulename: mcpm-exynos.ko

configname: CONFIG_EXYNOS_MCPM

Linux Kernel Configuration
└─>Samsung EXYNOS
└─>EXYNOS_MCPM
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
source code:
arch/arm/mach-exynos/mcpm-exynos.c
selects
CONFIG_MCPM