CONFIG_DA850_WL12XX is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_DA850_WL12XX.
Result is shown for kernelversion 6.5.1

AM18x wl1271 daughter board

configname: CONFIG_DA850_WL12XX

Linux Kernel Configuration
└─>TI DaVinci Implementations
└─>AM18x wl1271 daughter board
In linux kernel since version 3.1 (release Date: 2011-10-24)  
The wl1271 daughter card for AM18x EVMs is a combo wireless
connectivity add-on card, based on the LS Research TiWi module with
Texas Instruments' wl1271 solution.
Say Y if you want to use a wl1271 expansion card connected to the
AM18x EVM.