default or selected kernelversion does not have config value CONFIG_SENSORS_MAX6875.
Result is shown for kernelversion 5.3.7

Maxim MAX6875 Power supply supervisor

modulename: max6875.ko

configname: CONFIG_SENSORS_MAX6875

Linux Kernel Configuration
└─>Device Drivers
└─>I2C support
└─>Miscellaneous I2C Chip support
└─>Maxim MAX6875 Power supply supervisor
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
If you say yes here you get support for the Maxim MAX6875
EEPROM-programmable, quad power-supply sequencer/supervisor.

This provides an interface to program the EEPROM and reset the chip.

This driver also supports the Maxim MAX6874 hex power-supply
sequencer/supervisor if found at a compatible address.

This driver can also be built as a module. If so, the module
will be called max6875.

source code:
depends
CONFIG_EXPERIMENTAL
CONFIG_I2C