default or selected kernelversion does not have config value CONFIG_DRM_OMAP_PANEL_NEC_NL8048HL11.
Result is shown for kernelversion 6.9.9

NEC NL8048HL11 Panel

modulename: panel-nec-nl8048hl11.ko

configname: CONFIG_DRM_OMAP_PANEL_NEC_NL8048HL11

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>OMAPDRM External Display Device Drivers
└─>SPI support
└─>NEC NL8048HL11 Panel
In linux kernel since version 4.1 (release Date: 2015-06-21)  
This NEC NL8048HL11 panel is TFT LCD used in the
Zoom2/3/3630 sdp boards.

source code: