default or selected kernelversion does not have config value CONFIG_VIDEO_M32R_AR.
Result is shown for kernelversion 6.7-rc3

AR devices

configname: CONFIG_VIDEO_M32R_AR

Linux Kernel Configuration
└─>Device Drivers
└─>Multimedia support
└─>V4L platform devices
└─>AR devices
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
This is a video4linux driver for the Renesas AR (Artificial Retina)
camera module.