zephyr: mcuboot_config: align nrfx_wdt usage#2507

mstasiaknordic wants to merge 2 commits intomcu-tools:mainmcu-tools/mcuboot:mainfrom

mstasiaknordic:nrfx_wdt_reworkmstasiaknordic/mcuboot:nrfx_wdt_reworkCopy head branch name to clipboard