sample: wi-fi: radio_test: Pull in nrf70 bus lib and move FICR code to radio test sample#19232

bama-nordic wants to merge 4 commits intonrfconnect:mainnrfconnect/sdk-nrf:mainfrom

bama-nordic:move_ficr2radiotestbama-nordic/sdk-nrf:move_ficr2radiotestCopy head branch name to clipboard