LLD already writes a build id if debug info is enabled.
Some projects set --pie-executable to avoid GNU ld bugs about stripping base relocations from an executable when they actually are used. Since -fixed:no is the default (and we don't support setting the -fixed option via the MinGW frontend), we don't need to handle this.
--disable-auto-image-base is ignored just like --enable-auto-image-base (as we ignore from before).