default or selected kernelversion does not have config value CONFIG_VIDEO_AS3645A.
Result is shown for kernelversion 6.7-rc3

AS3645A flash driver support

modulename: as3645a.ko

configname: CONFIG_VIDEO_AS3645A

Linux Kernel Configuration
└─>Device Drivers
└─>Multimedia support
└─>I2C Encoders, decoders, sensors and other helper chips
└─>AS3645A flash driver support
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This is a driver for the AS3645A and LM3555 flash controllers. It has
build in control for flash, torch and indicator LEDs.

source code: