[nrf fromtree] bootutil: Fix bootutil_aes_ctr_drop memset usage#511

nvlsianpu merged 1 commit intonrfconnect:mainnrfconnect/sdk-mcuboot:mainfrom

de-nordic:fix-bootutil_aes_ctr_dropde-nordic/sdk-mcuboot:fix-bootutil_aes_ctr_dropCopy head branch name to clipboard