CONFIG_OMAP3_EMU is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_OMAP3_EMU.
Result is shown for kernelversion 6.5.1

OMAP3 debugging peripherals

modulename: emu.ko

configname: CONFIG_OMAP3_EMU

Linux Kernel Configuration
└─>TI OMAP2/3/4 Specific Features
└─>OMAP3 debugging peripherals
In linux kernel since version 2.6.33 (release Date: 2010-02-24)  
Say Y here to enable debugging hardware of omap3

source code: