CONFIG_MACH_IGEP0020 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

IGEP v2 board

modulename: board-igep0020.ko

configname: CONFIG_MACH_IGEP0020

Linux Kernel Configuration
└─>IGEP v2 board
In linux kernel since version 2.6.33 (release Date: 2010-02-24)  
source code:
/arch/arm/mach-omap2/