[nrf fromlist] boards: nordic: nrf54h20dk: ipc to cpusys with unbound#3016

lstnl wants to merge 1 commit intonrfconnect:mainnrfconnect/sdk-zephyr:mainfrom

lstnl:nrf54h20-ipc-with-cpusys-with-unboundlstnl/sdk-zephyr-temp:nrf54h20-ipc-with-cpusys-with-unboundCopy head branch name to clipboard