default or selected kernelversion does not have config value CONFIG_R8712_AP.
Result is shown for kernelversion 6.2.5

Realtek RTL8712U AP code

configname: CONFIG_R8712_AP

Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>Realtek RTL8712U AP code
In linux kernel since version 2.6.37 (release Date: 2011-01-04)  
This option allows the Realtek RTL8712 USB device to be an Access Point.