default or selected kernelversion does not have config value CONFIG_MTD_PNC2000.
Result is shown for kernelversion 5.15.113

CFI Flash device mapped on Photron PNC-2000

modulename: pnc2000.ko

configname: CONFIG_MTD_PNC2000

Linux Kernel Configuration
└─>Device Drivers
└─>Memory Technology Devices (MTD)
└─>Mapping drivers for chip access
└─>CFI Flash device mapped on Photron PNC-2000
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
PNC-2000 is the name of Network Camera product from PHOTRON
Ltd. in Japan. It uses CFI-compliant flash.

source code: