default or selected kernelversion does not have config value CONFIG_IWLAGN_LEDS.
Result is shown for kernelversion 5.3.7

Enable LEDS features in iwlagn driver

configname: CONFIG_IWLAGN_LEDS

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Wireless LAN
└─>Enable LEDS features in iwlagn driver
In linux kernel since version 2.6.27 (release Date: 2008-10-09)  
This option enables LEDS for the iwlagn drivers