[nrf noup] boot/zephyr: improve S2RAM resume support using soc_pre_ram_hook#536

nvlsianpu merged 2 commits intonrfconnect:mainnrfconnect/sdk-mcuboot:mainfrom

nvlsianpu:s2ram_mediationnvlsianpu/fw-nrfconnect-mcuboot:s2ram_mediationCopy head branch name to clipboard