This update for gzip fixes the following issues:

Update from version 1.9 to version 1.10 (jsc#ECO-2217, jsc#SLE-12974)

- Enable `DFLTCC` (Deflate Conversion Call) compression for s390x for levels 1-6 to `CFLAGS`. (jsc#SLE-13775)

Enable by adding `-DDFLTCC_LEVEL_MASK=0x7e` to `CFLAGS`.
- Fix three data corruption issues. (bsc#1145276, jsc#SLE-5818, jsc#SLE-8914)
- Add support for `DFLTCC` (hardware-accelerated deflation) for s390x arch. (jsc#SLE-5818, jsc#SLE-8914)

Enable it using the `--enable-dfltcc` option.
- Compressed gzip output no longer contains the current time as a timestamp when the input is not a regular file.
Instead, the output contains a `null` (zero) timestamp. This makes gzip's behavior more reproducible when
used as part of a pipeline.
- A use of uninitialized memory on some malformed inputs has been fixed.
- A few theoretical race conditions in signal handlers have been fixed.
- Update gnulib for `libio.h` removal.

This update was imported from the SUSE:SLE-15:Update update project.