libdeflate-gzip -12 of a kernel takes about a second, and its input
usually did not change. Run it through cache-run.sh, as Build/lzma.
libdeflate-gzip stores no mtime or file name, and -k -S .new gives the
same output as -c.
Signed-off-by: John Crispin <john@phrozen.org>
John Crispin
5b3be62345
