default or selected kernelversion does not have config value CONFIG_ARM64_PLATFORM_DEVICES.
Result is shown for kernelversion 6.9.8

ARM64 Platform-Specific Device Drivers


Linux Kernel Configuration
└─>Device Drivers
└─>ARM64 Platform-Specific Device Drivers
In linux kernel since version 4.19.318 (release Date: 2024-07-18)  
Say Y here to get to see options for platform-specific device drivers
for arm64 based devices, primarily EC-like device drivers.
This option alone does not add any kernel code.

If you say N, all options in this submenu will be skipped and disabled.