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

LED Support for the Amstrad Delta (E3)

modulename: leds-ams-delta.ko


Linux Kernel Configuration
└─>Device Drivers
└─>LED Support
└─>LED Support for the Amstrad Delta (E3)
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
This option enables support for the LEDs on Amstrad Delta (E3).

source code: