CONFIG_V850E_TEG is not available for thedefaultarchitecture x86.
Result is shown for architecture v850
default or selected kernelversion does not have config value CONFIG_V850E_TEG.
Result is shown for kernelversion 5.19-rc1

CONFIG_V850E_TEG (not configurable)

modulename: teg.ko

configname: CONFIG_V850E_TEG

uClinux/v850 (w/o MMU) Kernel Configuration
└─>Processor type and features
└─>V850E_TEG
In linux kernel since version 2.6.21 (release Date: 2007-04-25)  
source code:
arch/v850/kernel/teg.c

is selected by
CONFIG_V850E_UART