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

Open-Channel SSD debugging support

configname: CONFIG_NVM_DEBUG

Linux Kernel Configuration
└─>Device Drivers
└─>Open-Channel SSD target support
└─>Open-Channel SSD debugging support
In linux kernel since version 4.1 (release Date: 2015-06-21)  
Exposes a debug management interface to create/remove targets at:

/sys/module/lnvm/parameters/configure_debug

It is required to create/remove targets without IOCTLs.

depends
CONFIG_NVM