default or selected kernelversion does not have config value CONFIG_GENERIC_CMOS_UPDATE.
Result is shown for kernelversion 6.2.5

CONFIG_GENERIC_CMOS_UPDATE (not configurable)

configname: CONFIG_GENERIC_CMOS_UPDATE

Linux Kernel Configuration
└─>GENERIC_CMOS_UPDATE
In linux kernel since version 2.6.23 (release Date: 2007-10-09)