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

CONFIG_EXYNOS_CPU_SUSPEND (not configurable)

modulename: pm.ko

and/or

pm-common.ko

configname: CONFIG_EXYNOS_CPU_SUSPEND

Linux Kernel Configuration
└─>Samsung EXYNOS
└─>EXYNOS_CPU_SUSPEND
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code:
/arch/arm/mach-exynos/