default or selected kernelversion does not have config value CONFIG_DWC3_HOST_USB3_LPM_ENABLE.
Result is shown for kernelversion 5.4.159

Enable USB3 LPM Capability

configname: CONFIG_DWC3_HOST_USB3_LPM_ENABLE

Linux Kernel Configuration
└─>Device Drivers
└─>USB support
└─>Enable USB3 LPM Capability
In linux kernel since version 3.17 (release Date: 2014-10-05)  
Select this when you want to enable USB3 LPM with dwc3 xhci host.