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

Enable ThumbEE CPU extension

modulename: thumbee.ko

configname: CONFIG_ARM_THUMBEE

Linux Kernel Configuration
└─>Enable ThumbEE CPU extension
In linux kernel since version 2.6.26 (release Date: 2008-07-13)  
Say Y here if you have a CPU with the ThumbEE extension and code to
make use of it. Say N for code that can run on CPUs without ThumbEE.

source code:
depends
CONFIG_CPU_V7