fix(firmware): restore omi/sysbuild/mcuboot.conf as regular file (#6350)#6845

TuEmb merged 1 commit intoBasedHardware:mainBasedHardware/omi:mainfrom

mvanhorn:fix/6350-mcuboot-conf-symlinkmvanhorn/omi:fix/6350-mcuboot-conf-symlinkCopy head branch name to clipboard