default or selected kernelversion does not have config value CONFIG_ATH12K.
Result is shown for kernelversion 6.3-rc3

Qualcomm Technologies Wi-Fi 7 support (ath12k)

modulename: ath12k.ko
configname: CONFIG_ATH12K

Linux Kernel Configuration
└─> Device Drivers
└─> Network device support
└─> Wireless LAN
└─> PCI support
└─> Qualcomm Technologies Wi-Fi 7 support (ath12k)

Enable support for Qualcomm Technologies Wi-Fi 7 (IEEE
802.11be) family of chipsets, for example WCN7850 and

If you choose to build a module, it'll be called ath12k.

source code: