CONFIG_S5P_DEV_MFC is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

CONFIG_S5P_DEV_MFC (not configurable)

configname: CONFIG_S5P_DEV_MFC

Linux Kernel Configuration
└─>Samsung EXYNOS
└─>S5P_DEV_MFC
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Compile in setup memory (init) code for MFC


is depended by
CONFIG_ARCH_EXYNOS