default or selected kernelversion does not have config value CONFIG_AR600x_SINGLE_ANTENNA.
Result is shown for kernelversion 6.2.5
Single Antenna
configname: CONFIG_AR600x_SINGLE_ANTENNA
Front-End Antenna Configuration
└─>Single Antenna
In linux kernel since version 2.6.37 (release Date: 2011-01-04)
Single Antenna Design