CONFIG_ARCH_EMEV2 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

Emma Mobile EV2

modulename: setup-emev2.ko

configname: CONFIG_ARCH_EMEV2

Linux Kernel Configuration
└─>Emma Mobile EV2
In linux kernel since version 3.1 (release Date: 2011-10-24)  
source code:
/arch/arm/mach-shmobile/


is selected by
CONFIG_MACH_KZM9D