internal/exec/util/file: use lchown chown when working with links
internal/exec/util/file: use lchown chown when working with links

dgonyeo/ignition,coreos/ignition,ajeddeloh/ignition,ajeddeloh/ignition,coreos/ignition,dgonyeo/ignition,coreos/ignition,ajeddeloh/ignition,dgonyeo/ignition