CONFIG_PCI_NANOENGINE is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_PCI_NANOENGINE.
Result is shown for kernelversion 6.9.9

BSE nanoEngine PCI support

modulename: pci-nanoengine.ko

configname: CONFIG_PCI_NANOENGINE

Linux Kernel Configuration
└─>Bus support
└─>BSE nanoEngine PCI support
In linux kernel since version 2.6.38 (release Date: 2011-03-14)  
Enable PCI on the BSE nanoEngine board.

source code: