default or selected kernelversion does not have config value CONFIG_WIMAX_GDM72XX_USB.
Result is shown for kernelversion 6.5.1

USB interface

configname: CONFIG_WIMAX_GDM72XX_USB

Select interface
└─>GCT GDM72xx WiMAX support
└─>USB interface
In linux kernel since version 3.1 (release Date: 2011-10-24)