default or selected kernelversion does not have config value CONFIG_NET_VENDOR_AURORA.
Result is shown for kernelversion 6.7-rc3

Aurora VLSI devices


Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Ethernet driver support
└─>Aurora VLSI devices
In linux kernel since version 4.1 (release Date: 2015-06-21)  
If you have a network (Ethernet) device belonging to this class,
say Y.

Note that the answer to this question doesn't directly affect the
kernel: saying N will just cause the configurator to skip all
questions about Aurora devices. If you say Y, you will be asked
for your specific device in the following questions.