default or selected kernelversion does not have config value CONFIG_DRM_OMAP_PANEL_SONY_ACX565AKM.
Result is shown for kernelversion 6.9.2

ACX565AKM Panel

modulename: panel-sony-acx565akm.ko

configname: CONFIG_DRM_OMAP_PANEL_SONY_ACX565AKM

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>OMAPDRM External Display Device Drivers
└─>SPI support
└─>ACX565AKM Panel
In linux kernel since version 4.1 (release Date: 2015-06-21)  
This is the LCD panel used on Nokia N900

source code: