Python3: include required .so's

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=732353
Update gzip

Latest dracut requires gzip with --rsyncable option
https://git.kernel.org/cgit/boot/dracut/dracut.git/commit/?id=80626ded3e849ba840ddd64c1713be5abb1c7449