Update geom_uzip to use new zlib:
- Use new zlib headers;
- Removed z_alloc and z_free to use the common sys/dev/zlib version.
- Replace z_compressBound with compressBound from zlib.
While there, limit LZMA CFLAGS to apply only for g_uzip_lzma.c.
Submitted by: Yoshihiro Ota <ota j email ne jp> (with changes,
bugs are mine)
Differential Revision: https://reviews.freebsd.org/D20271