default or selected kernelversion does not have config value CONFIG_LEDS_CM_X270.
Result is shown for kernelversion 5.3.7

LED Support for the CM-X270 LEDs

modulename: leds-cm-x270.ko

configname: CONFIG_LEDS_CM_X270

Linux Kernel Configuration
└─>Device Drivers
└─>LED Support
└─>LED Support for the CM-X270 LEDs
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
This option enables support for the CM-X270 LEDs.

source code: