default or selected kernelversion does not have config value CONFIG_SENSORS_NCT6775_CORE.
Result is shown for kernelversion 6.9-rc4

CONFIG_SENSORS_NCT6775_CORE (not configurable)

modulename: nct6775-core.ko

configname: CONFIG_SENSORS_NCT6775_CORE

Linux Kernel Configuration
└─>Device Drivers
└─>Hardware Monitoring support
└─>SENSORS_NCT6775_CORE
In linux kernel since version 5.2 (release Date: 2019-07-07)  
This module contains common code shared by the platform and
i2c versions of the nct6775 driver; it is not useful on its
own.

If built as a module, the module will be called
nct6775-core.

source code: