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

CONFIG_CLOCKSOURCE_WATCHDOG (not configurable)

configname: CONFIG_CLOCKSOURCE_WATCHDOG

Linux Kernel Configuration
└─>CLOCKSOURCE_WATCHDOG
In linux kernel since version 2.6.21 (release Date: 2007-04-25)