CONFIG_CPU_EXYNOS4210 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
SAMSUNG EXYNOS4210
modulename: clock-exynos4210.ko
configname: CONFIG_CPU_EXYNOS4210
Linux Kernel Configuration
└─>SAMSUNG EXYNOS SoCs Support
└─>SAMSUNG EXYNOS4210
In linux kernel since version 2.6.39 (release Date: 2011-05-18)
Enable EXYNOS4210 CPU support