libxml2 security update

2.9.7-8.0.1 - Update doc/redhat.gif in tarball - Add libxml2-oracle-enterprise.patch and update logos in tarball 2.9.7-8 - Fix CVE-2019-19956 1793001 - Fix CVE-2020-7595 1799786 - Fix CVE-2019-20388 1810058...