Add script to add only syncdaemon to a boot image
unlokibootimg: Handle gzip archives with a header of \x1F\x8B\x08\x08
unlokibootimg: Use orig_ramdisk_size if possible
unlokibootimg: Use orig_kernel_size if possible
unlokibootimg: Add support for the "new" loki images where the fields in the loki header are filled