CONFIG_ETRAX_NBR_LED_GRP_ZERO is not available for thedefaultarchitecture x86.
Result is shown for architecture cris
default or selected kernelversion does not have config value CONFIG_ETRAX_NBR_LED_GRP_ZERO.
Result is shown for kernelversion 6.5.1

Use zero LED groups

configname: CONFIG_ETRAX_NBR_LED_GRP_ZERO

Nbr of Ethernet LED groups
└─>Use zero LED groups
In linux kernel since version 2.6.25 (release Date: 2008-04-16)  
Select this if you do not want any Ethernet LEDs.