found some information about how to create board-bin files for wifi "ath10k" .. I hope it is same for "ath11k" .https://github.com/jhugo/linux/blob/5.5rc2_wifi/README
.But the main problem is for this build required "wlandsp" & "bdwlan" but in My device only available "bdwlan" firmwares.. "wlandsp" firmware also shown as symbolic link but not available on this location..

I was checked in
"/vendor/firmwares"
"/vendor/firmware_mnt"
"/odm/firmware"
But not available"wlandsp"